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hichkok12 [17]
3 years ago
8

12. 2007: The figure below show two identical trollbys with loads A and B. The

Physics
1 answer:
galina1969 [7]3 years ago
7 0

Answer:

you need to provide a figure that came with the problem.

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Compare the energy input and output for nuclear fission and nuclear fusion.
Alisiya [41]

Explanation:

Nuclear fission involves the spontaneous disintegration of a radionuclide.

In nuclear fusion, two light nuclides are combined to form a heavier one.

  • Both nuclear fusion and fission releases a very large amount of energy
  • Nuclear fusion releases by far more energy compared to nuclear fission.
  • It has more output energy.

Nuclear fission can occur spontaneous or when bombarded with particles. They require little energy input to activate them.

Nuclear fusion has a high activation energy because the energy barrier is very great. It occurs in the cores of stars at very high temperature and pressure.

Learn more;

Non renewable energy brainly.com/question/2948717

#learnwithBrainly

3 0
4 years ago
A rock is thrown from the edge of the top of a 51 m tall building at some unknown angle above the horizontal. The rock strikes t
Xelga [282]

Answer:

The speed of projection is 34 m/s.

Explanation:

Height of building, h = 51 m

horizontal distance, d = 74 m

time, t = 8 s

Let the angle is A and the speed is u.

d = u cos A x t

74 = u cos A x 8

u cos A = 9.25 .... (1)

Use second equation of motion

h = u sin A t - 0.5 gt^2\\\\-51 = u sinA \times 8 - 0.5\times 9.8\times8\times 8\\\\u sin A = 32.8 .... (2)

Squaring and adding both the equations

u^2 = 9.25^2 + 32.8^2 \\\\u = 34 m/s

8 0
4 years ago
Which statement is false?
dusya [7]
C) doubling the mass doubles the acceleration
5 0
3 years ago
Will give Brainliest!! Question attached.
ss7ja [257]

Answer:

im pretty sure it is 3.0 K

Explanation:

8 0
3 years ago
Read 2 more answers
Identify the forces acting on the object of interest. From the list below, select the forces that act on the piano.
Nonamiya [84]

Answer:

gravitational force acting on the piano (piano's weight)

force of Chadwick on the piano

force of the floor on the piano (normal force)

Explanation:

Figure is missing: found it in attachment.

In the figure, we notice that the piano is accelerating along the horizontal direction: this means that there is a net force acting along this direction. This force is prodiced by Chadwick, and it acts in the same direction as the acceleration, so one force is:

force of Chadwick on the piano

Also, every object on Earth experencies the force of gravity, which is also called weight. The weight of the piano acts downward, so a second force is:

gravitational force acting on the piano (piano's weight)

Finally, we notice that the piano is in equilibrium along the vertical direction (no acceleration): this is because there is another force acting opposite to the piano's weight (and with equal magnitude), and this force is the normal force exerted by the floor on the piano:

force of the floor on the piano (normal force)

3 0
3 years ago
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