Yes, I do think that the idea that we are "star stuff" has significant philosophical implications. Firstly, it challenges the notion that we are separate from the universe and reinforces the idea that we are interconnected with everything around us.
This can lead to a sense of awe and wonder about the universe and our place in it.
Additionally, the idea that we are made of the same material as stars can inspire a sense of responsibility to take care of the planet and our fellow human beings. We are not just individuals, but part of a larger whole, and our actions can have an impact on the world around us.
From a societal perspective, this understanding can lead to a greater appreciation for science and the pursuit of knowledge. It can also inspire a sense of unity and cooperation among different cultures and nations, as we all share this common connection to the universe.
Overall, recognizing our connection to the stars can have profound implications for how we view ourselves and our place in the world, and can inspire us to live more consciously and responsibly.
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A supertanker ( = 1.70 × 108 kg) is moving with a constant velocity. Its engines generate a forward thrust of 7.40 × 105 N. Determine (a) the magnitude of the resistive force exerted on the tanker by the water and (b) the magnitude of the upward buoyant force exerted on the tanker by the water.
I need work shown thank u
Answer:
(a) 0 (b) \(F=1.67\times 10^9\ N\)
Explanation:
Given that,
Mass of a supertanker, \(m=1.7\times 10^8\ kg\)
The engine of a generate a forward thrust of, \(F=7.4\times 10^5\ N\)
(a) As the supertanker is moving with a constant velocity. We need to find the magnitude of the resistive force exerted on the tanker by the water. It is given by :
F = ma, a is the acceleration
For constant velocity, a = 0
So, F = 0
(b) The magnitude of the upward buoyant force exerted on the tanker by the water is equal to the weight of the ship.
F = mg
\(F=1.7\times 10^8\times 9.8\\\\F=1.67\times 10^9\ N\)
Hence, this is the required solution.
El concepto cosmológico abarca todo lo relativo a la cosmología y, al unir este término con la metafísica sería posible una correcta asociación la cual sería * 3 puntos
La respuesta correcta para esta pregunta abierta es la siguiente.
No incluyes opciones, incisos, o alguna referencia específica para responder esta pregunta.
De ahí que responderemos en términos generales basándonos en nuestro conocimiento previo.
El concepto cosmológico abarca todo lo relativo a la cosmología y, al unir este término con la metafísica sería posible una correcta asociación la cual sería benéfica para ambos campos de conocimiento porque de esta manera se estarían complementando y enriqueciendo el uno al otro.
Cuando la ciencia -en este caso, la cosmología- acepte los conceptos metafísico que no tienen un sustento científico pero que sí contemplan alternativas en el mundo espiritual que son aceptadas por una innumerable cantidad de personas, entonces los expertos podrán plantear nuevas y diferentes posibilidades de entender los fenómenos que al día de hoy, carecen de una convincente explicación.
Tanto la cosmología como la metafísica podrían mostrarse más receptivos a las aportaciones de una y la otra, con objeto de poder aumentar las posibilidades de comprender un fenómeno. No necesariamente debe haber una teoría científica para poder avanzar en el conocimiento de algún tema. De ahí que las aportaciones metafísicas sean válidas como una alternativa de investigación.
these two resistors are in series. first, stop and trace the current flowing from the battery through the complete circuit. now, what is the current flowing through resistor r1?
The current flowing through resistor R1 since resistors in series have the same current running through them is the current flowing from the battery through the complete circuit.
To find the current flowing through resistor R1, first we need to trаce the current flowing from the bаttery through the complete circuit. The given resistors аre in series, which meаns they аre connected end-to-end, so the sаme current flows through both of them. Thus, the current flowing through the complete circuit is:
I = V/Rtotаl
where I is the current, V is the voltаge of the bаttery, аnd Rtotаl is the totаl resistаnce of the circuit.To find the totаl resistаnce of the circuit, we need to аdd the resistаnces of both resistors in series:
Rtotаl = R1 + R2
Thus, the current flowing through the complete circuit is:
I = V / (R1 + R2)
Now, to find the current flowing through resistor R1, we use Ohm's Lаw, which stаtes thаt the current through а resistor is proportionаl to the voltаge аcross it аnd inversely proportionаl to its resistаnce. Thus:
I1 = V/R1
where I1 is the current flowing through resistor R1. Substituting the vаlue of V from the previous equаtion, we get:
I1 = I * R1 / (R1 + R2)
Therefore, the current flowing through resistor R1 is I1 = I * R1 / (R1 + R2)
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Which is formed from two pieces of different metals stuck together lengthwise?
bimetallic coil
coolant
heat pump
furnace
The term that is formed from two pieces of different metals stuck together lengthwise is bimetallic coil.
What is a bimetallic coil-A bimetallic coil is an essential component of many temperature control devices. Bimetallic coils are also known as bimetallic strips, and they are made up of two different types of metal bonded together and wound into a coil shape.Bimetallic coils are used to create a temperature-sensitive sensor that can open and close a circuit as temperatures rise or fall. This capability allows bimetallic coils to be used in a variety of devices, including thermostats, heat pumps, and furnace limit switches.The structure of bimetallic coils : A bimetallic strip is made up of two separate metals that are bonded together. These metals have different coefficients of thermal expansion, which means that they expand and contract at different rates as the temperature changes.When the bimetallic coil is exposed to heat, the metal with the lower coefficient of thermal expansion will expand more than the metal with the higher coefficient of thermal expansion.
This causes the bimetallic strip to bend, which can be used to open or close a circuit.In summary, bimetallic coils are temperature-sensitive sensors used to regulate the temperature of devices. The bimetallic coil is formed by bonding two different metals together and winding them into a coil shape.
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Describe how the
amplitude
of a wave is
related to the energy in a
wave. Support your answer
with details from the
animation.
The amplitude of a wave is directly related to the energy carried by the wave. This is because the amplitude of a wave is defined as the distance between the rest position of the wave and its highest or lowest point.
As the amplitude of a wave increases, the energy carried by the wave also increases .In the animation, we can see that as the amplitude of the wave increases, the height of the wave increases as well. This means that more energy is being transferred through the wave. Conversely, when the amplitude of the wave decreases, the height of the wave decreases and the energy carried by the wave decreases as well.
This relationship between amplitude and energy can be further illustrated by considering sound waves. A louder sound corresponds to a higher amplitude sound wave, which carries more energy. Similarly, a quieter sound corresponds to a lower amplitude sound wave, which carries less energy.
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What acts against the direction of motion and gets larger as an object moves faster
Answer:
Friction
Explanation:
In the event that the power is applied toward the path inverse to the bearing of movement, it goes against the movement of the item and henceforth the speed of the article diminishes.
Then, in the event that the thing continues to move one way, grinding will dominate and go about as the moving variable.
So, the moving factor would be friction.
Which hypothesis is supported by your observations of the teacher demonstrations?
Question 9 options:
If the resistance in a circuit increases, then the speed of the electrons increases.
If the resistance in a circuit increases, then the speed of the electrons decreases.
If the resistance in a circuit increases, then the speed of the electrons stays the same
Answer: If the resistance in a circuit increases, then the speed of the electrons decreases
Explanation:
According to Ohm's Law, I = V/R
Current is inversely proportional to resistance. The higher the resistance, the lower the current. Current is the rate of flow of electricity; electricity is the flow of free electrons.
True/False. neutron stars are the densest objects that we can directly observe in the universe.
True. Neutron stars are some of the densest objects that we can directly observe in the universe. These stars are formed when a massive star undergoes a supernova explosion, and the core of the star collapses under its own gravity, creating a super-dense object that is composed almost entirely of neutrons.
The Neutron stars have a mass similar to that of the sun but are only about 10 miles in diameter, making them incredibly compact. Because of their extreme density, neutron stars have very strong gravitational fields and can cause the space around them to warp and bend. They also emit intense radiation, including X-rays and gamma rays, which can be detected by telescopes. Studying neutron stars can provide insights into the fundamental properties of matter, as well as the processes that occur in the most extreme environments in the universe.
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water is know to boil at 100°C.A student boiled water and realised it's boiling point was 101°C.State two possible reasons
-- impurities in the water
-- air pressure is higher than standard
Taylor throws her mom's crystal vase vertically upward with an initial velocity of 26.2 m/s.
Determine the following:
a) The maximum height the vase reaches.
The maximum height the vase reaches will be 35.022 m
The kinematic equations can be referred to those equations that help in understanding the motion of an object with uniform acceleration
Given
initial velocity = u = 26.2 m/s
at the highest point , final velocity = 0
acceleration = acceleration due to gravity = 9.8 \(m/s^{2}\)
height = ?
using equation of kinematics
v = u + at
v =u - gt
0 = 26.2 - 9.8 t
time = 2.67 seconds
The ball will take 2.67 seconds to reach the highest point
using equation
s = u*t + 1/2 a\(t^{2}\)
s = 26.2 * 2.67 - 1/2 * 9.8 * \(2.67^{2}\)
s = 69.954 - 34.932 = 35.022 m
The maximum height the vase reaches will be 35.022 m
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How much energy is transferred in 10 seconds with a current of 13 amperes and a potential difference of 230 volts?
29900 J
Explanation:
Recall that
P = VI
= (230 volts)(13 A)
= 2990 watts
Also,
E = Pt
= (2990 watts)(10 s)
= 29900 J
An engine using 1 mol of an ideal gas initially at 18.5 L and 358 K performs a cycle
consisting of four steps:
1) an isothermal expansion at 358 K from
18.5 L to 39.1 L ;
2) cooling at constant volume to 180 K ;
3) an isothermal compression to its original
volume of 18.5 L; and
4) heating at constant volume to its original
temperature of 358 K .
Find its efficiency. Assume that the
heat capacity is 21 J/K and the universal gas constant is 0.08206 L · atm/mol/K =
8.314 J/mol/K.
The efficiency of the engine is 83.4% assuming that the
heat capacity is 21 J/K and the universal gas constant is 0.08206 L · atm/mol/K =8.314 J/mol/K.
What is efficiency?Efficiency is described as the often measurable ability to avoid wasting materials, energy, efforts, money, and time while performing a task.
The efficiency of the engine is given by:
E = W/Q
where;
W = the work done in the four steps,
Q = the energy input
Since there at four steps in a cycle:
E = w1+ w2 +w3+ w4/ q1+ q2+q3+q4
We calculate that the work done in the first step (isothermal expansion)
n= 1 mole, T1 = 402 K, V2 = 41.2 L, V1 = 18.5 L
We also solve for Steps 2 and 4 are constant volume processes,
We also calculate work done in the third step (isothermal expansion) is
where;
n = 1 mol, T3 = 273 K, V4 = 41.2 L, V3 = 18.5 L
We notice that Heat enters the system only during steps (1) and (4).
The internal energy of the gas increases in step 4 but no work is done, while the internal energy is constant change in step 1 but work is done by the gas.
Cv =21 J/K, T3 = 273 K, T4 = 402 K
We Solve for efficiency, ɛ:
ɛ = 2676.01 +0 +0 + 1879.29/ 2676.01 +0 +0 + 2709 = 83.4%.
Therefore, the efficiency of the engine is 83.4%.
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A/An _____ is a type of electric circuit in which there is a single current path.1) electric current2) conventional circuit3) parallel circuit4) series circuit
An electric circuit consists of a completer closed path (or paths) for electric current. A series circuit is a type of electric circuit in which there is a single current path.
Hence, the correct option is (2)
what is the equation of preassure
a wire carrying a 26-a current passes between the poles of a strong magnet that is perpendicular to its field and experiences a 2.16-n force on the 4.00 cm of wire in the field. what is the average field strength?
When a wire carrying a 26-a current travels perpendicular to the field of a powerful magnet, it experiences a 2.16-n force on the 4.00 cm of wire in the field. The average field strength is 1.6T
How strong a field on average?Less than 30 microteslas (0.3 gauss), which corresponds to most of South America and South Africa, to more than 60 microteslas (0.6 gauss), which corresponds to northern Canada, south of Australia, and parts of Siberia, are the strengths of the fields at the Earth's surface.
The magnitude of the wire whose length is L carrying a current I and making an angle θ with a magnetic field of density B is calculated using the following formula.
B = F/(I * L * Sin(θ)
Given that F = 2.16N
I = 30 A
L = 4cm = 4 * 10^-2m
θ = π/2
By substitution
B = 2.16/(30 * 4 * 10^-2 * Sin(π/2))
B = 1.6T
Hence, the average field strength is 1.6T
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Why does a blue solution appear blue what colors of light are absorbed transmitted?
Answer:
The solution absorbs the red and green wavelengths; however, the blue light is reflected and passes through, so the solution appears blue. This procedure takes place whenever an object displays visible color.
of the various elements of composition, which one directly implies a point of view?
"Of the various elements of composition, framing directly implies a point of view."
Framing is a compositional feature that explicitly conveys a point of view. These choices are deliberate and may affect how the audience understands the message and the subject.
Photographers make use of a variety of compositional factors to enhance and improve images. They include patterns, textures, lines, shapes, and forms as well as colour, tone, contrast, depth, frames, symmetry, and asymmetry as well as negative and positive space and visual strain.
The location from which you snap a picture is referred to as the viewpoint when discussing composition. By extrapolation, the viewpoint of the person viewing the image is also the viewpoint of the photographer. Simply shifting your position while taking the picture will allow you to alter your perspective.
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A force is required for any change in an object's motion to occur.
True
False
Answer:
True
Explanation:
an object in motion stays in motion unless acted upon by another force
Answer/Explanation:
True. A force is what causes a movement in the first place. In order for an object to change motion a different force must be applied such as its opposing force.
Natural force: Thrust
Opposing force is drag.
Other forces are gravity and lift.
The opposing force will reverse the motions direction, the other forces will just change the direction without reversing.
4. Which of the three approaches to sociological investigation best fit the study: scientific
sociology, interpretive sociology, or critical sociology? Why? (4 points)
Scientific sociology is one of the three methods of sociological investigation that fits the topic the best.
The definition of scientific sociologyIt is possible to define sociology as the scientific study of society, which includes a complete analysis of both internal and external elements that can have an impact on social structures and interaction patterns.
It should be noted that while the sociology field is very broad and full of opportunities that are required to complete the study that is being discussed in the work, this study focuses on social interaction and culture, which help to determine the things that can be used to learn more about the society.
In conclusion, of the three methods of sociological inquiry, scientific sociology is the most effective for the study of society.
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what happens when the energy of a machine is transformed into heat? a. the energy is destroyed. b. the energy can always be used for additional work. c. the energy usually cannot be recovered. d. the energy usually cannot do any further work.
According to the energy conservation principle, energy can only be transformed from one type of energy to another. It cannot be created or destroyed.
When the energy of a machine is transformed into heat the energy can always be used for additional work. The total amount of energy in the universe has never changed and will never change because it cannot be created or destroyed. However, this does not imply that energy cannot alter its forms or even flow between objects. However, it is capable of switching from more useful to less useful forms. It turns out that some energy gets transformed into an useless form in every real-world energy transfer or transformation (unavailable to do work). Conduction is the process through which heat energy is transported between or inside things.
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As a red of recent weather activity, there’s less water available for human consumption. Which blome is affected by the most by this change?
Answer:
The freshwater biome will be most likely to be affected by the weather conditions as the freshwater reservoirs accumulates water from sources like rain, flood and melting of snow. The reservoirs form are groundwater, river, lakes, ponds and others. In the absence of rain the water will not be accumulated in the biome and will effect the life forms living there.
Explanation:
Why are circuit breakers and fuses important?
Answer:
A fuse and circuit breaker both serve to protect an overloaded electrical circuit by interrupting the continuity, or the flow of electricity. ... Fuses tend to be quicker to interrupt the flow of power, but must be replaced after they melt, while circuit breakers can usually simply be reset.
All elements are composed of extremely small particles called
In its initial state, the 75 kg wrecking ball shown in the diagram above is released from rest at a distance of 3.5 m off the ground. After swinging back and forth multiple times, it's captured in its final state swinging up at a speed of 5.0 m/s at the instant it is 2.0 m off the ground. Determine the total work done by dissipative forces on the pendulum system between its initial and final
states.
The total work done by dissipative forces on the pendulum system between its initial and final states is 165 J.
What is kinetic energy?Kinetic energy is the energy possessed by a moving object due to its motion. It is defined as one-half the mass of an object multiplied by the square of its velocity.
The kinetic energy of the wrecking ball at the final state is given by (1/2)mv², where v is its speed.
under which m is the object's mass and v is its velocity. The unit of kinetic energy is joules (J).
Assuming that the system is conservative (i.e., no external forces are acting on the system), the total work done by dissipative forces on the pendulum system between its initial and final states is equal to the total mechanical energy lost by the system due to dissipative forces. The mechanical energy of the system is given by the sum of its kinetic energy and potential energy:
E = K + U
At the initial state, the wrecking ball has only potential energy, which is equal to its gravitational potential energy:
U_i = mgh_i
where m is the mass of the ball, g is the acceleration due to gravity (9.8 m/s²), and h_i is the initial height of the ball (3.5 m). Therefore, the initial mechanical energy of the system is:
E_i = U_i = mgh_i
At the final state, the wrecking ball has both kinetic energy and potential energy. Its kinetic energy is given by:
K_f = (1/2)mv²
where v is the speed of the ball (5.0 m/s). Its potential energy is given by:
U_f = mgh_f
where h_f is the final height of the ball (2.0 m). Therefore, the final mechanical energy of the system is:
E_f = K_f + U_f = (1/2)mv² + mgh_f
Since the system is conservative, the total mechanical energy is conserved, i.e., E_i = E_f. Therefore, the total work done by dissipative forces on the pendulum system is:
W = E_i - E_f = mgh_i - (1/2)mv² - mgh_f
Plugging in the given values, we get:
W = (75 kg)(9.8 m/s²)(3.5 m) - (1/2)(75 kg)(5.0 m/s)² - (75 kg)(9.8 m/s²)(2.0 m)
W = 165 J
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A rectangular coil of wire, 22.0 cm by 35.0 cm and carrying a current of 1.40 A, is oriented with the plane of its loop perpendicular to a uniform 1.50-T magnetic field pointing into the plane of the loop. Let the loop be in x-y Cartesian plane so that the long and short sides of the loop are parallel to x- and y-axis, respectively. The loop center is at the origin of x-y Cartesian plane. Note that the magnetic field is in the direction of the negative z-axis.a. Calculate: (i) the net force that the magnetic field exerts on the coil; (ii) the torque about the z-axis that the magnetic field exerts on the coil.b. The plane of the coil is now rotated through +30º from its initial orientation (the x-y plane of the Cartesian coordinate system that remains the same). Calculate: (i) the net force that the magnetic field exerts on the coil; (ii) the torque about the rotation axis that the magnetic field exerts on the coil.
Answer:
a) \(F_{net}=0\)
b) \(T=0\)
Explanation:
From the question we are told that:
Dimensions:
\(L*B=22.0*35.0cm\)
Current \(I=1.40A\)
Magnetic field \(B=1.40\)
Therefore
\(Area=L*B\)
\(A=22.0*35.0cm\)
\(A=770cm=>770*0^{-4}\)
a)
Generally Force on Looping gives
\(F_1-F_2\)
\(F_3=F_4\)
Therefore
\(F_{net}=0\)
b)
Generally the equation for Torque is mathematically given by
\(T=i*Asin \theta\)
Since A and B are on opposite direction
\(\theta=180\)
Therefore
\(T=1.40*770*10^{-4}sin 180\)
\(T=0\)
A vector points 12.0 units along the x-axis, and 9.00 units along the y-axis.
Find the direction of the vector.
Answer:
15 units NE
Explanation:
Assuming the coordinate plane is a compass with N being the positive y-axis, we can use the Pythagorean theorem to find the magnitude of the vector. Since the vector is going up by 12 and right by 9 at the same time, it should form a diagonal line, aka the hypotenuse of a triangle. This triangle has both of its leg units as 12, and 9. Pythagorean theorem states that a^2 + b^2 = c^2, that is both of their legs squared is the hypotenuse of the triangle squared. 12^2 + 9^2 = c^2. c = 15. Now that we know the magnitude, let's go back to the quadrants as the compass. Since both units are positive, the vector goes in the positive direction on both sides, which is Quadrant 1. North and East would be the appropriate say for the vector's direction, thus the vector's direction will be 15 units North East.
A 15 kg child slides down a 5 m tall (vertical) slide that is inclined to the horizontal 34°. Her velocity is 5 m/s at the bottom of the sled. How much mechanical energy was lost to friction?
ANSWER
547.5 J
EXPLANATION
Given:
• The child's mass, m = 15 kg
,• The height of the slide, h = 5 m
,• The velocity of the child at the bottom of the slide, v = 5 m/s
Find:
• The loss of mechanical energy due to friction
The loss of mechanical energy due to friction is the difference between the child's gravitational potential energy at the top of the slide, and the child's kinetic energy at the bottom of the slide,
\(PE-KE=mgh-\frac{1}{2}mv^2\)Replace the known values and solve,
\(PE-KE=15kg\cdot9.8m/s^2\cdot5m-\frac{1}{2}\cdot15kg\cdot5^2m^2/s^2=735J-187.5J=547.5J\)Hence, 547.5 Joules of energy were lost due to friction.
An object has a volume of 4.0 m3 and weighs 40,000 N. What will its apparent weight be in water of density 1000 kg/m3?
Answer:
O N
Explanation:
Upthrust = Volume of object * density of fluid * acceleration due to gravity
Upthrust = 4.0 m3 * 1000 kg/m3 * 10 m/^2
Upthrust = 40, 000 N
Upthrust = Weight in air - Weight in water
Weight in air = 40,000 N
Weight in water = Weight in air - Upthrust
Weight in water = 40,000 N - 40,000 N
Weight in water = 0 N
A 10kg oil is heated by a source of heat that supplies 800J of heat every minute. Calculate The heat added to oil after 30 minutes.
Answer:
4,200 joules per kilogram per degree Celsius
Explanation:
The specific heat capacity of a material is the energy required to raise one kilogram (kg) of the material by one degree Celsius (°C). The specific heat capacity of water is 4,200 joules per kilogram per degree Celsius (J/kg°C). This means that it takes 4,200 J to raise the temperature of 1 kg of water by 1°C.
duration, frequency, and intensity are increased in an exercise program during the ________ phase.
The duration, frequency, and intensity are increased in an exercise program during the progression phase.
A program's progression phase is a key time for developing strength, flexibility, and endurance. In order to keep the body challenged and encourage new adaptations, the duration, frequency, and intensity of the workouts are increased during this phase. People can prevent hitting a plateau and advance towards their fitness objectives by progressively increasing the demands placed on their bodies. To prevent injury or overtraining, it's crucial to approach this phase cautiously and to gradually and carefully increase these factors. An effective progression plan can assist people in achieving their fitness objectives, whether they are to increase their overall health and wellness, lose weight, or gain muscle.
In an exercise program, duration, frequency, and intensity are typically increased during the "progression" phase. This phase focuses on gradually increasing the workload to improve physical fitness and adapt to the exercise routine.
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