Angular momentum is conserved in collisions due to the principle of conservation of angular momentum. This principle states that the total angular momentum of a closed system remains constant, provided no external torques are acting upon it.
In both parts i and ii, we consider closed systems where external torques are not present. In part i, we have a collision where both linear and angular momentum are conserved. This occurs in a situation like an isolated spinning object or when two objects collide elastically without any friction between them.
In part ii, linear momentum may not be conserved, possibly due to friction or other external forces acting on the objects. However, angular momentum is still conserved. This happens because, despite the change in linear momentum, the net torque acting on the system remains zero. Therefore, the total angular momentum of the system is conserved, as dictated by the principle of conservation of angular momentum.
In summary, angular momentum is conserved in both parts i and ii because the principle of conservation of angular momentum holds true, as long as no external torques are acting upon the closed system. Even when linear momentum is not conserved, the total angular momentum remains constant due to the absence of net external torques.
To know more about Angular momentum visit:
https://brainly.com/question/29897173
#SPJ11
The voltage across the primary winding is 6000 v. if the primary winding has 50 coils and the secondary winding has 20 coils, what is the secondary voltage? 120 v 2400 v 15,000 v 120,000 v
if the primary winding has 50 coils and the secondary winding has 20 coils then the secondary voltage will be equal to 2400V
What is voltage?Voltage is defined as the potential difference which apply a force on the charge to flow in the circuit.
This is a question on transformer. A transformer is a device used to step up or step down current and voltage. It consists of the primary windings and secondary windings. Each windings possesses both coil and amount of voltage across each coil.
The transformer formula is
\(\dfrac{V_S}{V_P}=\dfrac{N_S}{N_P}\)
Where;
Vs is the voltage across the secondary coil
Vp is the voltage across the primary coil
Ns is the number of turn in the primary coil
Np is the number of turns in the primary coil.
According to the question,
Vs is unknown
Vp is 6000V
Ns is 20turns
Np is 50turns
Substituting the values in the formula given
\(\dfrac{V_S}{6000}=\dfrac{20}{50}\)
Vs = 2400V
Therefore the secondary voltage is 2400V
To know more about voltage follow
https://brainly.com/question/1176850
Answer:
2400
Explanation:
edge 2022
If two different net forces are applied to the same object at different times, which one will cause the object to accelerate at a greater rate — the larger or smaller net force?
Answer:
The smaller net force :)
Explanation:
The second law shows that if you exert the same force on two objects of different mass, you will get different accelerations (changes in motion). The effect (acceleration) on the smaller mass will be greater (more noticeable).
If two different net forces are applied to the same object at different times, a smaller net force will cause the object to accelerate at a greater rate.
What is force?Force is defined as the push or pulls applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.
Newton's second rule states that if you apply the same force to two objects with different masses, the accelerations will be different. The impact will be larger on the smaller mass.
If two different net forces are applied to the same object at different times, a smaller net force will cause the object to accelerate at a greater rate.
Hence smaller rate is the correct answer.
To learn more about the force refer to the link;
https://brainly.com/question/26115859
What is the energy of the lowest-energy photon that can be absorbed by these atoms in their ground state?
To determine the energy of the lowest-energy photon that can be absorbed by atoms in their ground state, you'll need to consider the energy levels of the atoms and the energy difference between these levels. The energy of a photon (E) can be calculated using the equation E = hf, where h is Planck's constant (6.63 x 10^-34 Js) and f is the frequency of the photon.
For the lowest-energy photon to be absorbed, it must cause a transition from the ground state (n=1) to the next higher energy level (n=2). Using the Rydberg formula, you can find the energy difference (ΔE) between these levels: ΔE = -13.6 eV * (1/n1^2 - 1/n2^2).
Plugging in n1 = 1 and n2 = 2, you'll find the energy difference is about 10.2 eV. To convert this to joules, multiply by the elementary charge (1.6 x 10^-19 C), resulting in approximately 1.63 x 10^-18 J.
Finally, to find the frequency (f) of the photon, rearrange the equation E = hf to f = E/h, and substitute the values: f ≈ 2.46 x 10^14 Hz. Therefore, the energy of the lowest-energy photon that can be absorbed by these atoms in their ground state is approximately 1.63 x 10^-18 J.
To know more about lowest-energy photon click here:
https://brainly.com/question/18691850
#SPJ11
Integrated Science- 8th grade science
Please Help ASAP!
Its almost the end of semester And I need to fix my grade for science so PLEASE help!
its almost report cards time!
Answer:
A. a rigorously tested explanation
Explanation:
B. and D. are out - theories are not opinionated, they are factualC. is out - not all theories are mathematicalA. is the best choiceAnswer:
The answer is option letter B
67.0mi/hr to m/s
please show work
What is the properties of P- waves
Answer:
P waves, or Primary waves, are the first waves to arrive at a seismograph. P waves are the fastest seismic waves and can move through solid and liquids
Explanation:
Nicki rides her bike at a constant speed for 6 km. That part of her ride takes her 1 hour. She then rides her bike at a constant speed for another 9 km. That part of her trip takes her 2 hours. What is her average speed?
Answer:
5km/h
Explanation:
distance divided by total time
Our eyes perceive colors because of differences in which of the following properties of light?
a)
Wavelength
b)
Intensity
c)
Source
d)
Angle
The properties of light is option a wavelength.
Wavelength:It is the distance between the points of two consecutive waves. It is usually denoted by the Greek letter lambda (λ), and it is equal to the speed (v) of a wave train in a medium divided by its frequency (f): λ = v/f.
So based on the above information, the a option is correct.
Learn more about the light here: https://brainly.com/question/18136864
Give me an example of theory
Answer:
theory is an idea to explain something,
Explanation:
Einstein's ideas about relativity are an example of the theory of relativity.
Answer: If skin cancer is related to ultraviolet light, then people with a high exposure to uv light will have a higher frequency of skin cancer.
Explanation:
A brass rod is encased in aluminum. What happens to the speed of a sound
wave when it passes through the rod and moves from the brass into the
aluminum?
Aluminum
Copper
Lead
Brass
(70% Cu,
30% Zn)
6,420
4,700
5,010
1,960
Speed of
sound
(m/s)
A. Its speed decreases.
OB. Its speed increases.
ООО
O C. Its speed falls to zero.
OD. Its speed stays the same.
PREVIOUS
Answer:
B. its speed increases
Explanation:
A brass rod is encased in aluminium. The speed of a sound wave in this decreases when it moves from the aluminium into the brass medium. Thus, the correct option is A.
What factors affect speed of sound?Sound travels in different mediums in the form of waves. The speed of sound is the speed with which the sound wave travels in a medium. The speed of the wave depends on the density and the elasticity of the medium through which the sound waves travel. In general, the sound wave travels faster in the liquid mediums in comparison to the gas medium and these are quicker in solid mediums than in liquid mediums. Thus, the greater the elasticity and the lower the density of the waves, the faster the sound waves travel in that medium.
The speed of sound in aluminium is 5100m/s and in the brass medium, it is 6,923. So, if the sound wave is moving from aluminum metal to the brass medium, we can clearly observe that there is decrease in the speed of sound. So, we can say here that is the speed is decreases.
Therefore, the correct option is A.
Learn more about Sound here:
https://brainly.com/question/29707602
#SPJ5
When will the motion of an object be
unchanged?
A. There is a positive net force.
B. The forces are unbalanced.
C. The forces are balanced.
D. The forces are not in equilibrium.
Answer:
C. The forces are balanced.
Explanation:
Every answer other than C means the object moved.
Score for Question 2: of 8 points)
2. A 10.00 resistor is hooked up in series with an 8.0 Q resistor followed by a 27.0 resistor. The circuit is
powered by a 9.0 V battery
(a) Draw a labeled circuit diagram for the circuit described.
(b) Calculate the equivalent resistance
I
(c) Calculate the voltage drop across each resistor in the circuit.
Answer:
(a) Circuit diagram:
---|---10.00Ω---|---8.0Ω---|---27.0Ω---|
| |
=== ===
| |
------------------------------------------
Battery
9.0V
(b) The equivalent resistance of the circuit is the sum of the resistances of each resistor, since they are connected in series:
Req = R1 + R2 + R3 = 10.00 Ω + 8.0 Ω + 27.0 Ω = 45.0 Ω
(c) To find the voltage drop across each resistor, we can use Ohm's law:
V = I * R
where V is the voltage drop, I is the current, and R is the resistance of the resistor.
Since the resistors are connected in series, the current is the same through all of them, and we can find it using Ohm's law and the equivalent resistance.
I = V / Req = 9.0 V / 45.0 Ω = 0.2 A
Now we can find the voltage drop across each resistor:
V1 = I * R1 = 0.2 A * 10.00 Ω = 2.0 V
V2 = I * R2 = 0.2 A * 8.0 Ω = 1.6 V
V3 = I * R3 = 0.2 A * 27.0 Ω = 5.4 V
Therefore, the voltage drop across the 10.00 Ω resistor is 2.0 V, the voltage drop across the 8.0 Ω resistor is 1.6 V, and the voltage drop across the 27.0 Ω resistor is 5.4 V.
To know more about equivalent resistance, click here:-
https://brainly.com/question/13606415
#SPJ11
Which of the following is not an advantage of nuclear power plants, when compared to fossil fuel plants? 1 The fuel for nuclear power plants has a higher specific energy than fossil fuels. 2 Nuclear power plants use renewable fuel. 3 Nuclear power plants do not produce greenhouse gases. 4 Nuclear power plants can be used to establish a 'baseline' power generation
The option that is not an advantage of nuclear power plants when compared to fossil fuel plants is: 2) Nuclear power plants use renewable fuel.
While options 1, 3, and 4 provide advantages of nuclear power plants, option 2 is not accurate. Nuclear power plants do not use renewable fuel. The fuel used in nuclear power plants is uranium or plutonium, which are non-renewable resources. These fuels are obtained through mining and have finite reserves on Earth. Once the fuel is used up, it cannot be replenished.
Advantages of nuclear power plants include:
1) The fuel for nuclear power plants has a higher specific energy than fossil fuels. This means that a small amount of nuclear fuel can produce a large amount of energy.
3) Nuclear power plants do not produce greenhouse gases. Unlike fossil fuel plants, which release carbon dioxide and other pollutants, nuclear power plants generate electricity without contributing to air pollution and climate change.
4) Nuclear power plants can be used to establish a 'baseline' power generation. Nuclear reactors can provide a constant and reliable source of electricity, operating continuously without depending on external factors like weather conditions or fuel availability.
Therefore, the correct option is 2) Nuclear power plants do not use renewable fuel.
Learn more about nuclear power plants here:
https://brainly.com/question/385512
#SPJ11
A pendulum is lifted to a height of 0.75 m. the mass of the bob is 0.2 kg. calculate the gpe at the top of the pendulum
Evaluate the line integral, where c is the given plane curve. c xy4 ds, c is the right half of the circle x2 y2 = 16 oriented counterclockwise
To evaluate the line integral ∫c xy^4 ds, where c is the right half of the circle x^2 + y^2 = 16 oriented counterclockwise, we can use parametric equations to represent the curve and calculate the integral.
The given curve is the right half of a circle with radius 4 centered at the origin. To evaluate the line integral, we can parameterize the curve using the equation x = 4cos(t) and y = 4sin(t), where t ranges from 0 to π.
The line integral can be expressed as ∫c xy^4 ds = ∫c (4cos(t))(4sin(t))^4 ds. To calculate ds, we use the arc length formula ds = sqrt(dx/dt^2 + dy/dt^2) dt. Substituting the parametric equations,
We have curve equations ds = sqrt((-4sin(t))^2 + (4cos(t))^2) dt. Simplifying, ds = sqrt(16sin^2(t) + 16cos^2(t)) dt = 4 dt.
Substituting ds = 4 dt into the line integral, we have ∫c xy^4 ds = ∫c (4cos(t))(4sin(t))^4 (4 dt). Now, we can simplify the integral and evaluate it over the given parameter range, from 0 to π.
Learn more about integral here:
https://brainly.com/question/87852
#SPJ11
An object is traveling 15 m/s East and accelerates at a rate of 2.5 m/s. How long was in motion?
Answer:
Explanation:
An object begins from rest and accelerates at a rate of 2.5 meters ... at a rate of +1.6 meters per second' while traveling +5.0 ... Calculate the block's rate of acceleration. 4. Vf² V, ²+2 ad. (12 m/s)?-(Omis) + 2(a)(50m) ... represents the motion of a car during a 6.0 second time interval. ... A cat moves 15 meters east in 5 seconds.
A flux of 0.6Wb passes through a motor field pole with an area of 120 cm2. Calculate the flux density
We will have that the flux density will be:
\(^{}\rho=\frac{0.6Wb}{120cm^2}\Rightarrow\rho=5\cdot10^{-3}Wb/cm^2\)Why do we use percent deviation rather than simply expressing the size of the error itself?
Answer:
the percentage we have the fraction between the error and the magnitude,
Explanation:
When absolute error is used, it is a value that remains constant regardless of the magnitude of the measurement, for large measurements it can represent great accuracy, but for small measurements the accuracy may be low, for example> if we use a tape measure with error of Dx = 0.1 cm if the measurement is 1 meter this error is acceptable, but if the measurement is 1 cm the error is too big.
When we use the percentage we have the fraction between the error and the magnitude, so if this relationship is small the measure is very tight and but if the relationship is high the measure has little pressure, for example
Δx = 1 cm = 0.01 m
% = 0.01 / 1 100 = 1%
% = 0.01 / 0.01 100 = 100%
therefore the precision of the measurement is known the percentage error
The path of a charged particle moving parallel to a uniform magnetic field will be a:______.
The path of a charged particle moving parallel to a uniform magnetic field will be straight line
Force on a charged particle moving in a magnetic field can be calculated by = q.(v*B )
q = charge of the particle
v = velocity of the particle
B = magnetic field
theta = angle between v and B
q . (v B sin (theta) )
Since, particle is parallel to the magnetic field
hence , theta = 0°
so sin(theta) = sin 0° = 0
hence , force = 0
since , there is no force acting on the particle it will remain in that motion in hat it was when it initially came in the magnetic field . Hence It will be moving along a straight line path because the magnetic force on the charged particle is zero.
To learn more about magnetic field here
https://brainly.com/question/17011493
#SPJ4
the cylindrical insulator is placed within an infinitely long hollow cylindrical conductor with inner radius 2???? and outer radius 3????. the cylinders are coaxial. the conductor is neutral.
The given scenario describes a cylindrical insulator placed within an infinitely long hollow cylindrical conductor. The cylinders are coaxial, meaning they share the same axis. The conductor is neutral, which means it has an equal number of positive and negative charges, resulting in no net charge.
The conductor has an inner radius of 2 units and an outer radius of 3 units. The insulator is positioned within the conductor.
Since the conductor is neutral, there are equal amounts of positive and negative charges distributed throughout its structure. These charges distribute themselves uniformly on the outer surface of the conductor.
As for the insulator, it does not allow the flow of electric charges. Therefore, it remains electrically neutral, meaning it does not gain or lose charges.
In summary, the conductor in this scenario remains neutral as it has equal amounts of positive and negative charges on its outer surface. The insulator within the conductor does not interact with the charges and remains neutral.
To know more about conductor visit:
https://brainly.com/question/14405035
#SPJ11
Find the acceleration of the 1kg block m the following diagram 5n 4n 5n
Explanation:
56777^7744 hold the 4 nd add 2
What will be the mass of a body at the center of the earth as compared to other places on
the earth?
Answer:
The mass of the object does not change by moving it to another place. ... At the center of the earth the net gravitational force is zero, so the weight will be zero, but its masses will remain same. Hence the mass at the centre of earth will be equl to 50 kg.
Explanation:
It's because the mass of the object doesn't change by moving it to next place.
One lap of a racetrack is equal to 1 . A runner completes 15 laps in an hour. What is his speed and
velocity?
Speed:-
\(\\ \tt\hookrightarrow \dfrac{Distance}{Time}\)
\(\\ \tt\hookrightarrow \dfrac{15}{1}=15km/h\)
Velocity:-
\(\\ \tt\hookrightarrow Displacement/Time \)
\(\\ \tt\hookrightarrow 0/1=0km/h\)
.Find the fundamental frequency and the frequency of the first three overtones of the pipe 60.0cm long, if the pipe is open at both ends.
Ffund,Fov1,Fov2,Fov3=______Hz
Find the funaemental freuency and the frequency of the first three overtones of the pipe 60.0cm long, if the pipe is closed at one end.
Ffund,Fov1,Fov2,Fov3=________Hz
If the pipe is open at both ends, what is the number of the highest harmonic that may be heard by a person who can hear frequencies from 20.0Hz to 2.00x10^4Hz?
n=____
If the pipe is closed at one end, what is the number of the highest harmonic that may be heard by a person who can hear frequencies from 20.0Hz to 2.00x10^4Hz?
n=____
For a pipe 60.0 cm long, open at both ends: Fₐₒᵥ₁ = 282.8 Hz, Fₐₒᵥ₂ = 848.4 Hz, Fₐₒᵥ₃ = 1414 Hz. For a pipe closed at one end: Fᶜₗₒ₁ = 94.3 Hz, Fᶜₗₒ₂ = 282.8 Hz, Fᶜₗₒ₃ = 471.4 Hz.
Determine what are the fundamental frequency?Fundamental frequency and the frequency of the first three overtones of a pipe 60.0 cm long, open at both ends:
Fₐₒᵥ₁, Fₐₒᵥ₂, Fₐₒᵥ₃ = 282.8 Hz, 848.4 Hz, 1414 Hz
Fundamental frequency and the frequency of the first three overtones of a pipe 60.0 cm long, closed at one end:
Fᶜₗₒ₁, Fᶜₗₒ₂, Fᶜₗₒ₃ = 94.3 Hz, 282.8 Hz, 471.4 Hz
Number of the highest harmonic that may be heard by a person who can hear frequencies from 20.0 Hz to 2.00x10⁴ Hz in a pipe open at both ends:
n = 99
Number of the highest harmonic that may be heard by a person who can hear frequencies from 20.0 Hz to 2.00x10⁴ Hz in a pipe closed at one end:
n = 198
For a pipe open at both ends, the fundamental frequency (Fₐₒᵥ₁) can be calculated using the formula Fₐₒᵥ₁ = v / 2L, where v is the speed of sound and L is the length of the pipe. In this case, the length of the pipe is 60.0 cm (or 0.60 m).
Using the known speed of sound (approximately 343 m/s), we can substitute these values into the formula to find Fₐₒᵥ₁ = 343 / (2 * 0.60) = 282.8 Hz.
The frequencies of the first three overtones can be calculated by multiplying the fundamental frequency by the harmonic number (1, 2, 3). Therefore, Fₐₒᵥ₂ = 2 * Fₐₒᵥ₁ = 2 * 282.8 Hz = 565.6 Hz, and Fₐₒᵥ₃ = 3 * Fₐₒᵥ₁ = 3 * 282.8 Hz = 848.4 Hz.
For a pipe closed at one end, the fundamental frequency (Fᶜₗₒ₁) can be calculated using the formula Fᶜₗₒ₁ = v / 4L, where v is the speed of sound and L is the length of the pipe. Substituting the values, we find Fᶜₗₒ₁ = 343 / (4 * 0.60) = 94.3 Hz.
The frequencies of the first three overtones for a closed pipe can be calculated using the formula Fᶜₗₒₙ = (2n - 1) * Fᶜₗₒ₁, where n is the harmonic number. Thus, Fᶜₗₒ₂ = (2 * 2 - 1) * Fᶜₗₒ₁ = 3 * 94.3 Hz = 282.8 Hz, and Fᶜₗₒ₃ = (2 * 3 - 1) * Fᶜₗₒ₁ = 5 * 94.3 Hz = 471.4 Hz.
To know more about speed of sound, refer here:
https://brainly.com/question/16485934#
#SPJ4
PLEASE HELP!! due SOON!!! A LOT OF POINTS
Answer:
they are both clocks i think please be right
I need help please :((((((
Suppose you walk across a carpet with socks on your feet. When you touch a metal door handle, you feel a shock because, c. Excess negative charges build up in your body while walking across the carpet, then jump when attracted to the positive charges in the door handle.
When you walk across a carpet with socks on your feet, the friction between the carpet and your socks causes the transfer of electrons. Electrons are negatively charged particles. As you move, the carpet rubs against your socks, stripping some electrons from the atoms in the carpet and transferring them to your socks. This results in your body gaining an excess of negative charges.
The metal door handle, on the other hand, contains positive charges. When you touch the metal door handle, there is a sudden flow of electrons from your body to the door handle. This movement of electrons is known as an electric discharge or a static shock. The excess negative charges in your body are attracted to the positive charges in the door handle, and this attraction causes the sudden discharge of electrons, resulting in the shock that you feel.
It's important to note that the shock occurs due to the difference in charges between your body and the metal door handle. The friction between your socks and the carpet allows for the buildup of static electricity, and the shock is a result of the equalization of charges when you touch the metal object. Therefore, Option E is correct.
Know more about Friction here:
https://brainly.com/question/24338873
#SPJ8
An object is shot upwards, from the ground, with an initial velocity of 120
m/s. How high will it be after 4.0s?
480 m
402 m
380 m
302 m
We can use the kinematic equation: h = vit + 1/2g*t^2 to determine the height of an object shot upwards with an initial velocity of 120 m/s after 4.0s.
Where h is the height, vi is the initial velocity, t is the time, and g is the acceleration due to gravity (approximately 9.8 m/s^2).
h = 1204 + 1/29.8*4^2
h = 480m
The height of the object after 4.0s is 480m. So the answer is 480 m.
A 0.225 kg block of iron at -28.7 °C is put in a cup of 0.150 kg of water at 18.9 °C. What is their equilibrium temperature?
Answer:
12.3°C should be the correct answer
Answer:
12.3
Explanation:
A horizontal, 2. 00 m long, 3. 00 kg uniform beam that lies along the east-west direction is acted on by two forces. At the east end of the beam, a 200 n force pushes downward. At the west end of the beam, a 200 n force pushed upward. What is the torque about the center of mass of the beam?.
The torque about the center of mass of the beam is calculated as -400 Nm.
What is torque?A measure of the force that can cause an object to rotate about an axis is known as torque. Just as force causes an object to accelerate in linear kinematics, torque causes an object to acquire an angular acceleration.
Given ; Force = 200 N; Length = 2.00 m and Mass = 3.00 kg
As we know that angular acceleration, α= τ/I rad/s²
The formula for moment of inertia is ;
I = ML²/12
Torque, τ = F * r
= ( 200 N * -1 m) + (-200 N * 1 m)
Torque = -400 Nm
Torque about the center of mass of the beam is -400 Nm.
To know more about torque, refer
https://brainly.com/question/17512177
#SPJ4
The universe has existed for approximately A) 13.7 light-years. B) 13.7 billion years. C) 13.7 million years. D) 13.7 thousand years.
Answer:
B) 13.7 billion years
Explanation:
Light-years are a unit of distance and the units of million years and thousand years are too small.