Which two statements describe what happens to the nuclei of atoms during a fusion reaction
Answers
During a fusion reaction, two statements that describe what happens to the nuclei of atoms are A small amount of mass in the nuclei that combine is converted to energy and Nuclei with small masses combine to form nuclei with larger masses. The correct option is B and D.
A small amount of mass in the nuclei that combine is converted to energy. During the fusion reaction, when the smaller nuclei combine, a small amount of mass is converted into a significant amount of energy, as described by Einstein's famous equation E=mc². This energy release is what makes fusion reactions so powerful and a potential source of clean energy.
Nuclei with small masses combine to form nuclei with larger masses. In a fusion reaction, lighter nuclei, typically isotopes of hydrogen like deuterium and tritium, combine under high pressure and temperature to form larger nuclei, such as helium. This process is what powers the Sun and other stars, as they fuse hydrogen into helium, releasing energy in the form of light and heat. The correct option is B and D.
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Complete question:
Which two statements describe what happens to the nuclei of atoms during a fusion reaction?
A. Large nuclei break apart into two or more smaller nuclei.
B. A small amount of mass in the nuclei that combine is converted to energy.
C. Each nucleus formed has fewer protons than each original nucleus had.
D. Nuclei with small masses combine to form nuclei with larger masses.
Related Questions
21. For this table of data, how should the y-axis be labeled (with units)?
force applied (N)
2.5
3.2
4.8
5.4
5.5
6.3
7.6
8.2
displacement (m)
10.75
13.76
20.64
23.22
23.65
27.09
32.00
35.26
O displacement
Om
O force applied
O force applied (N)
O displacement (m)
ON
Answers
Answer:
The y-axis would be labeled with displacement (m)
Explanation:
The displacement is dependent on the force applied.
Labels should have what you measure and how your units of measure.
The x-axis would be labeleed with force applied (N)
The y-axis would be labeled with displacement (m)
Which example provides a complete scientific description of an object in motion?
Answers
what type of light caused a plant to photosynthesize?
Answers
Answer:
The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm). Therefore, the best light sources for photosynthesis should ideally emit light in the blue and red ranges.
a skater extends her arms horizontally, holding a 2 kg mass in each hand. she is rotating about a vertical axis with an angular velocity of 1 rev/s. if she pulls her hands in towards the center of her body, approximately what will the final angular velocity be if her own moment of inertia remains approximately constant at 5 kg m2, and the distance of the masses from the axis changes from 1 m to 0.2 m?
Answers
The final angular velocity will be 10.96 rad/sec.
What are some instances of the law of conservation of angular momentum?According to the rule of conservation of angular momentum, an object's angular momentum won't change when no external tension is applied to it. Several instances of momentum: The speed at which the Earth spins hasn't changed in billions of years.
How to solve the question?Given, mass in each hand, m = 2 kg
initial angular velocity, ω₁ = 1 rev/s = 1×2π = 6.28 rad/sec
moment of inertia of skater, I = 5 kgm²
initial distance of the masses from the axis, d₁ = 1m
final distance of the masses from the axis, d₂ = 0.2m
According to conservation of angular momentum,
Linitial = Lfinal
I₁ω₁ = I₂ω₂
I₁ = 5+2×2×1 = 9 kgm²
I₂ = 5+2×2×(0.2)² = 5.16 kgm²
9×6.283 = 5.16×ω₂
ω₂ = 9×6.2833/5.16
ω₂ = 10.96 rad/s
So, the final angular velocity will be 10.96 rad/s.
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Assume you have 3 light bulbs connected in a series circuit to a battery.
What can you say about the current through each light bulb?
Current varies through all bulbs
There is no current through the bulbs
Current is the same through all bulbs
Answers
Answer:
Current is the same through all bulbs
Explanation:
Because it's a series circuit, the current traveling through the circuit doesn't change. In a parallel circuit, however, the current would not be the same due to the different 'paths' of the circuit.
True of False, in physics the term weight and force of gravity have the
same meaning?"
Help with both questions please.
Answers
Answer:
1) True
2) None of the above
Explanation:
Q # 1:
Weight is actually the gravitational force or force of gravity. So, it's true.
Q # 2:
None of above because force of gravity can not be negative. In order to have a negative weight, the body has to be "repelled" by gravity.
\(\rule[225]{225}{2}\)
Hope this helped!
~AH1807RESPIRATION the exchange of gases between your body and your environment.
TRUE OR FALSE
Answers
true
Explanation:
because in physiology, respiration is the movement of oxygen from the outside environment to the cells within tissues, and the removal of carbon dioxide in the opposite direction.
cargo, such as trucks, that cannot be containerized because it is too large and won't fit in a traditional container or because it exceeds the maximum weight of a container load is called
Answers
The cargo that cannot be containerized because it is too large and won't fit in a traditional container or because it exceeds the maximum weight of a container load is commonly known as break-bulk cargo. The term for this type of cargo is "breakbulk cargo." Breakbulk cargo refers to cargo, such as trucks, that cannot be containerized because it is too large to fit in a traditional container or because it exceeds the maximum weight of a container load.
This type of cargo is typically transported on open flatbed trucks, on specialized trailers or on vessels equipped with specialized cargo handling equipment. Break-bulk cargo can include heavy machinery, large vehicles, and oversized pieces of equipment or machinery.
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A roller coaster starts with a speed of 4.6 m/s at a point 49 m above the bottom of a dip.
Neglecting friction, what will be the speed of the roller coaster at the top of the next
slope, which is 29 m above the bottom of the dip?
Answers
Answer:
20.5m/s
Explanation:
neglecting friction the amount of energy at the bottom equals to the amount of energy at top. Law of conservation of energy.
ME= P.E+k.E
ME= mgh+ 1/2mv*v
ME = (m* 10 *49)+(1/2m(4.6*4.6))
MEtop=500.98m
MEbottom=MEtop: in order to obey the law of conservation of energy
MEbottom=mgh+ 1/2mv*v
500.98m=m*10*29+1/2m v* v
500.98m= m(290+1/2v*v) ...cancel m by m
500.98-290=1/2v*v criss cross multiple
210.98*2=v*v
v=√421.96
v=20.5 m/s
What is the mass of an object that accelerates at 5 m/s2 when pushed with 100 N?
Answers
Answer:
the answer is 20g
Explanation:
Data:
acceleration:5m/s2
force:100N
mass:?
solution:
force: mass*acceleration
mass: force divided by acceleration
mass:100/5
mass:20g
or another way of solving it is
force: mass*acceleration
100:mass*5
100/5 : mass
20g:mass
A 3,000kg car rests on rough horizontal ground. A rope is
attached to the car and is pulled with a force of 11,000N to the
left. As a result, the car accelerates at 3 m/s2. The coefficient of
sliding friction (1) between the car and the ground is?
Answers
Answer:
0.07
Explanation:
Huge Brain
Coefficient of friction between the car and the ground will be 0.07.
Given in the question,
Mass of the car 'm' = 3000 kgForce 'F' by which the car is pulled = 11000 NAcceleration 'a' by which the car gets accelerated = 3 meters per second²Force applied on the car by which the car is accelerated,
F = ma
= 3000 × 3
= 9000 N
Force \(F_k\) to overcome the friction = 11000 - 9000
= 2000 N
Gravitational force F' on the car = mg
= 3000(9.8)
= 29400 N
Since, \(\mu_k=\frac{F_k}{F'}\)
\(=\frac{2000}{29400}\)
\(=0.068\)
≈ 0.07
Therefore, coefficient of friction between the car and the ground will be 0.07.
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Suppose an asteroid orbits the sun with a mean radius 11 times that of Earth. Use the simplified version of
Kepler's third law (T2= a³) to find the period of the asteroid? Round your answer to the nearest Earth year.
Answers
Answer:
36 years
Explanation:
Given the equation of Kepler's third law as T² = a³, you want to know the period of an asteroid that has an orbital radius of 11 au.
PeriodSolving the given equation for t, we find ...
T = a^(3/2) . . . . . . take the 1/2 power
Then for a=11, the period in years is ...
T = 11^(3/2) ≈ 36.48
The period of the asteroid is about 36 years.
A battery provides a potential difference of 3V so that a current of 2.5A flows through a bulb. What is the power of this bulb
Answers
the electric power of the bulb is equal to 7.5 watts. The energy every second. In other words, 24 joule of energy are sent to the surroundings every second. The lightbulb has a 24 watt capacity.
What wattage is one light bulb?The voltage of an average incandescent bulb, which is intended to match that voltage generated by a standard electrical outlet, is about 110 Volts. The average wattage (the quantity of energy produced) of a lightbulb is 60 Watts. A typical incandescent bulb has a lumen rating of about 600.
The formula to calculate the electric power can be written as:
P = IV
where P is the power, V is the potential difference and I is the electric current in the circuit.
Given, the potential difference of the bulb, V = 3 V
The current flowing through the bulb, I = 2.5 A
The power of the bulb, P = 3 × 2.5 = 7.5 Watt
Therefore, the electric power of the bulb is equal to 7.5 watts.
What exactly is electricity?Electric power is the result of the circuit's current flow and the potential difference that has been put across it. Power = VI. Watt is the unit of power (W).
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Particles q₁ = +9.33 µC, q₂ = +4.22 µC, and 93 = -8.42 µC are in a line. Particles q₁ and q₂ are separated by 0.180 m and particles q₂ and q3 are separated by 0.230 m. What is the net force on particle q₂? Please help up to 100 points.
Answers
Answer:
Fnet = 16.98204316 N will point right
Explanation:
q₁ and q₂ both positive ⇒ F₁₂ will point right, repel
q₂ pos and q₃ neg ⇒ F₂₃ will point right, attract
Fnet = F₁₂ + F₂₃
Fnet = k.q₁.q₂/r₁₂² + k.q₂.q₃/r₂₃²
Fnet = 9x10⁹x 9.33x10⁻⁶x4.22x10⁻⁶/(0.18)² + 9x10⁹x 4.22x10⁻⁶x8.42x10⁻⁶/(0.23)²
Fnet = 0.3543534/(0.18)² + 0.3197916/(0.23)²
Fnet = 10.93683333 + 6.04520983
Fnet = 16.98204316 N
What is the relationship between the valence electrons of an atom and the chemical bonds the atom can form?
Answers
Answer:
Valence electrons are outer shell electrons with an atom and can participate in the formation of chemical bonds. In single covalent bonds, typically both atoms in the bond contribute one valence electron in order to form a shared pair. The ground state of an atom is the lowest energy state of the atom.
4. Which best explains the function of the alveoli in the respiratory system?
Page 135
A. The alveoli help to keep the lungs healthy by providing a way for all the cells
in the lungs to obtain nutrients from the bloodstream
B. The alveoli help to keep the lungs inflated when you breathe out and make it
possible to absorb oxygen
C. The alveoli provide a large surface area for absorbing oxygen from the air and
releasing carbon dioxide wastes from the bloodstream
D. The alveoli provide a large surface area for absorbing oxygen from the air
when you breathe in and look like a bunch of grapes
a
Answers
Answer:
C
Explanation:
Alveoli are tiny functioning structures that compose your lungs. They help with respiration. They have a large total surface area, which is very useful for respiration. The more surface area there is, the more transactions can happen. Which means that breathing will be easier/faster when you have more alveoli. (Please rate this answer if you have time!)
An Eider duck is flying Northeast at 25 m/s at an angle of 36.9 degrees to the ground (from the positive
X-axis). What are the horizontal and vertical velocities, respectively, of the duck's flight?
Answers
Answer:
Horizontal = 19.99212 m/s Vertical = 15.0151 m/s
Explanation:
Horizontal = Cos(36.9) x 25
Vertical = Sin(36.9) x 25
(b) Fig. 3.1 is an overhead view of two tractors pulling a tree trunk.
The force exerted by each tractor is indicated in the diagram. In the space below, carefully draw a scale diagram to determine the resultant force on the tree trunk. State the scale you use. Write down the magnitude of the resultant force and the angle between the resultant force and one of the original forces.
Answers
Answer:
Here's a rough diagram for this question!
The scale I used is 1cm = 5000N.
So, 20000N = 4 cm & 30000N = 6cm.
To find the magnitude of the resultant force, draw a straight line from one corner of the parallelogram to the other end and measure the line. From the diagram, mine would be around 10cm. So, based on the scale I used, 10cm would be 50000N. Therefore, the resultant force is 50000N!
For the angle between the resultant force, I got around 13°-14°!
I hope this helps!
EDIT: My bad, I just noticed I wrote 2000N on my pic loll, thats supposed to be 20000N.
Celeste is flying in a helicopter that is traveling to the left at 45 m/s when she drops
her calculator out the door.
45 m/s
what path would an observer on the ground see her calculator follow as it falls?
explain your decision.
Answers
The rate of motion and direction of an object are measured by a vector known as velocity. Therefore, we need to understand both the magnitude and direction in order to calculate the velocity according to this definition.
Velocity of calculator with respect to ground Ve = 45m/s
Vy = 0
Vx = -45m/s
Ax = 0
Vy = 0, Ay = -10m/s
So, the x component of velocity remains same as Ax = 0
while the Vy increases as A = 0
So, the calculator will experience a half projectile type motion.
A = 0
V = 0
Ay = -10
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Part A
1) What happens when you add a second drip and space both the drips close together? Describe the pattern they form and explain the cause for this pattern in detail.
2)Turn off the second drip and then add a barrier with one slit. What do you observe on the right side of the wall? What do you observe on the left side of the wall? From a physics perspective, explain your observations of what is happening on both sides of the barrier.
Part B
1) On the Sound tab, investigate briefly all the phenomena you explored with water waves above and describe any similarities in your results for sound. Specifically, describe
- wave pattern as seen on the screen
- shape and amplitude of the graph
- effect of frequency on wavelength
- effect of frequency on velocity
- pattern with two sources
- wave pattern with a single-slit barrier
2) Sound and water waves obviously have many similarities, but they are not exactly the same. Describe all the differences you can think of between sound waves and water waves.
Part C
1) On the Light tab, once again investigate briefly all the phenomena you explored with water and sound above. Describe any similarities in your results for light. Specifically describe
- wave pattern as seen on the screen
- shape and amplitude of the graph
- effect of frequency on wavelength
- effect of frequency on velocity
- pattern with two sources
- wave pattern with a single-slit barrier
2) Light waves have some similarities with water and sound waves, but they are not exactly the same. Describe all the differences you can think of between light waves, sound waves, or water waves
Plz Answer All Questions. tysm.
Answers
Answer:
1) Superposition results in adding the two waves together. Constructive interference is when two waves superimpose and the resulting wave has a higher amplitude than the previous waves. Destructive interference is when two waves superimpose and cancel each other out, leading to a lower amplitude.
I'm sorry thats all I can help with
Answer:
Turn off the second drip and then add a barrier with one slit. What do you observe on the right side of the wall? What do you observe on the left side of the wall? From a physics perspective, explain your observations of what is happening on both sides of the barrier.
Explanation:
The speed and amplitude of the waves are affected when hitting the barrier. The two waves reflect off the barrier and they travel in opposite directions.
what makes a star produce energy
Answers
Answer:
Stars produce energy from nuclear reactions, primarily the fusion of hydrogen to form helium. These and other processes in stars have lead to the formation of all the other elements.
Explanation:
Answer:
The answer is C)
Explanation:
C) Nuclear fusion
In reality, there is friction in the piping, which means that an additional pressure equivalent to a height of 100 m is needed to pump the water from the bottom tank to the top tank. What is the minimum power required when accounting for friction? By what percentage has friction increased the minimum power required? Remember to show your calculations.
Answers
An additional pressure equivalent to a height of 100 m is needed to pump the water from the bottom tank to the top tank if there is no friction. The minimum power required is around 6880 kg * \(m^2/sec^3.\)
To calculate the minimum power required when accounting for friction in pumping water between tanks, we need to consider the additional pressure required and the flow rate.
Given:
Additional pressure due to friction = 100 m
Let's assume the flow rate is Q (in cubic meters per second).
The power (P) required to pump water can be calculated using the formula:
P = Q * ρ * g * H
where ρ is the density of water and g is the acceleration due to gravity.
We can express the additional pressure (ΔP) in terms of the height of the water column:
ΔP = ρ * g * Δh
Solving for Δh, we find:
Δh = ΔP / (ρ * g)
Substituting the given values:
P = \((0.6 m^3/sec * 8.5 m * 1000 kg/m^3) / 0.75 + (0.6 m^3/sec * 100 m) / 0.75\)
P = \((5100 kg * m^2/sec^3) / 0.75 + (60 m^2/sec^2) / 0.75\)
P = \(6800 kg * m^2/sec^3 + 80 m^2/sec^2\)
P = \(6880 kg * m^2/sec^3\)
Therefore, the minimum power required, accounting for friction, is approximately \(6880 kg * m^2/sec^3.\)
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determine the resistance of, and current through, a 75-w lightbulb connected to its proper source voltage of 110v. repeat for a 250-w bulb
Answers
The electric power can be determined if any two of the three are given namely voltage, current or resistance.
What is the maximum value of the instantaneous power?The same formula will be used for the maximum value, but the amplitude will be used in place of the rms value. 2755.98 Watts is the highest possible value for the instantaneous power.
Alternating Current, sometimes known as AC in its acronym form, is a category of current that frequently reverses direction. A full positive cycle and a full negative cycle, repeated at the waveform's frequency, make up an entire AC cycle. Due to the necessity of transformers, it is a useful sort of waveform. AC usage
The lower case letter p is used to represent the instantaneous power in an AC circuit, which is defined as the sum of the instantaneous voltage (v) across the element and the instantaneous current I flowing through the element. Power Instantaneous, p=vi
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NEED HELP ASAPTsunamis are often called tidal waves because they are caused by tides.
o True
o False
Answers
Answer:
false
Explanation:
a tsunami is almost always caused by an earthquake under water.
if 9.0 j of work is done on a system and the internal energy of the system increases by 17.0 j, how much heat was added to the system?
Answers
If a system undergoes 9.0 j of work and the system's internal energy increases by 17.0 j, then 8 j of heat were contributed to the system.
given,
U = 17J
W = -9J
Q = U+W
Q = 17-9
Q = 8J
Energy refers to the ability of a physical system to perform work. It is a fundamental concept in physics, and plays a crucial role in nearly all aspects of our lives, from powering our homes and vehicles to driving the global economy. There are various forms of energy, including mechanical, electrical, thermal, and nuclear energy. Energy can be converted from one form to another, but the total amount of energy in a closed system remains constant, in accordance with the law of conservation of energy. The demand for energy continues to grow with increasing population and development, and there is a need to find sustainable sources of energy to reduce our dependence on fossil fuels and mitigate the effects of climate change.
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How powerful is an engine that can do 400 J of work in 10 seconds?
(Provide your answer in both "Watts" and "horsepower".)
Answers
Answer:
\(P=40 \ W\)
Conceptual:
What is work?Work is simply the transfer of work over a displacement. Work is a Newton-meter which is called a Joule, J. Work can be calculated using the following formulas.\(\boxed{\left\begin{array}{ccc}\text{\underline{Equations for Work:}}\\W=F \Delta rcos(\theta) \ \text{(Constant} \ \vec F) \\W= \int\limits^{r_2}_{r_1} {Fcos(\theta)} \, dr \ \text{(Varible} \ \vec F) \end{array}\right }\)
The angle "θ" is the angle between the force applied and the direction of displacement.
What is power?Power is the amount work done per second, which is a J/s, and this is clumped together to create a Watt, W. Power can be calculated using the following formula.\(\boxed{\left\begin{array}{ccc}\text{\underline{Formula for Power:}}\\\\P=\frac{W}{t} \end{array}\right}\)
Explanation:
Given that an engine does 400 J of work in 10 seconds. Find the power of the engine.
\(W=400 \ J\\t=10 \ s\)
Plug these values into the formula for power.
\(P=\frac{W}{t} \\\\\Longrightarrow P=\frac{400}{10}\\\\\therefore \boxed{P=40 \ W}\)
Thus, the engines power is calculated.
Select the correct answer. If the resistance remains constant and the voltage doubles, what effect will that have on the power? A. The power will remain the same. B. The power will decrease by a factor of 2. C. The power will decrease by a factor of 4. D. The power will increase by a factor of 2. E. The power will increase by a factor of 4.
Answers
If the resistance remains constant and the voltage doubles, the power will increase by a factor of 4 (option E)
How do i determine the new power?The following data were obtained from the question:
Initial power (P₁) = PInitial voltage (V₁) = VResistance = ConstantNew voltage (V₂) = 2VNew power (P₂) =?P = V² / R
Resistance is constant, we have
V₁² / P₁ = V₂² / P₂
V² / P = (2V)² / P₂
V² / P = 4V² / P₂
Cross multiply
V² × P₂ = P × 4V²
Divide both side by V²
P₂ = P × 4V² / V²
P₂ = P × 4
From the above, we can conclude that the power will increase by a factor of 4 (option E)
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How much heat is given off when 210.0 g of water at 0°C freezes into ice?
Answers
Answer:
it gives off 71.0 kJ of heat.
Explanation:
Rahul is carrying a load of 80 kg along a distance of 200 meters in 5 minutes. But the same load is carried by reena to the same distance in 4 minutes. Who had more power? Also show by calculation .
Answers
Answer:
Reena
Explanation:
200 / 5 = 40 metres in a minute
200 / 4 = 50 metres in a minute,
Therefore Reena is faster
state any two conditions essential for good health
Answers
Answer:
balanced diet
exercise
Answer:
Two conditions essential for good health are:
State of physical, mental and social well-being.
Better surroundings or -environment.
Exercise and Relaxation.
Being disease-free.
Social and economic well-being.
Leading stress free life.