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ser-zykov [4K]
2 years ago
10

which of these statements best compares the processes by which energy is produced in the sun and nuclear power plants? a. atoms

fuse in the sun, but atoms break up in nuclear power plants. b. atoms break up in the sun, but atoms fuse in nuclear power plants. c. atoms of elements in the sun expand to emit heat and nuclear energy. d. atoms of elements in the sun contract to emit heat and nuclear energy.
Physics
2 answers:
11Alexandr11 [23.1K]2 years ago
5 0

Answer:

A. Atoms fuse in the sun, but break up in nuclear power plants.

Explanation:

In the Sun occurs a phenomenon called Nuclear Fusion, there a massive fusion reaction is constantly occurring with the presence of hydrogen and helium.

On the other hand, nuclear power plants collide neutrons against uranium atoms to split them. So, this split provide neutrons from uranium, which collide with other atoms causing a chain reaction, releasing high power energy.

Harlamova29_29 [7]2 years ago
3 0
A. atoms fuse in the sun, but atoms break up in nuclear power plants.

The process in the Sun is a Fusion Process, atoms are fused, while the process in nuclear power plant is a Fission Process, atoms break up. 
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The distance from Earth to the North Star is about 430 light-years. Which of the following statements describes why scientists u
vampirchik [111]

Answer:

D

Explanation:

D

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2 years ago
A point charge with a charge q1 = 4.00 μC is held stationary at the origin. A second point charge with a charge q2 = -4.10 μC mo
GrogVix [38]

Answer:

W = -0.480 J

Explanation:

given,

q₁ = 4 μC

q₂ = -4.10 μC

W = kq_1q_2(\dfrac{1}{a}+\dfrac{1}{b})

b = \sqrt{(0.27-0)^2+(0.27-0)^2}

b = 0.381

k = 8.99 × 10⁹ Nm²/C²

W = 8.99\times 10^9\times 4\times 10^{-6}\times (-4.1 \times 10^{-6})(\dfrac{1}{0.17}+\dfrac{1}{0.381})

W = [-147.436\times (5.88-2.62)\times 10^{-3}]J

W = -0.480 J

Work done by the electric force W = -0.480 J

4 0
2 years ago
a 100 kg person travels from sea level to an altitude of 5000 m. By how mans newtons does their weight change?
Bumek [7]

Answer:

Thus, the change in the weight of the person is 1.6N , option c is correct.

Explanation:

3 0
1 year ago
What changes a ball velocity
Grace [21]

Answer/Explanation: Speed and direction can change with time. When you throw a ball into the air, it leaves your hand at a certain speed. As the ball rises, it slows down. Then, as the ball falls back toward the ground, it speeds up again. When the ball hits the ground, its direction of motion changes and it bounces back up into the air.

5 0
3 years ago
5.0 kg, with a bullet of mass 0.1 kg. The target was mounted on
kari74 [83]

Answer:

306 m/s

Explanation:

Law of conservation of momentum

m1v1 + m2v2 = (m1+m2)vf

m1 is the bullet's mass so it is 0.1 kg

v1 is what we're trying to solve

m2 is the target's mass so it is 5.0 kg

v2 is the targets velocity, and since it was stationary, its velocity is zero

vf is the velocity after the target is struck by the bullet, so it is 6.0 m/s

plugging in, we get

(0.1 kg)(v1) + (5.0 kg)(0 m/s) = (0.1 kg + 5.0 kg)(6.0 m/s)

(0.1)(v1) + 0 = 30.6

(0.1)(v1) = 30.6

v1 = 306 m/s

8 0
3 years ago
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