A geocentric system is a part of the astronomical theory which describes the universe. Meaning that it puts the Earth in the CENTER of the universe as a point of view for other objects surrounding it.

8 0

3 years ago

a ball of 5 kg is moving towards the wall at 6 m/s. after a while, it hits the wall and rebounds back at 4 m/s in the opposite d

iris [78.8K]

Answer:-50 J

Explanation:

3 0

3 years ago

In class I mentioned that we used to show an actual ballistic pendulum where a rifle is shot into a heavy block to see how the b

Len [333]

Answer:

0.66 m/s

Explanation:

This is an inelastic collision, for that reason the conservation of momentum law allows us to determine the final velocity of both, the bullet and block together after the collision:

$m_{bullet} v_{bullet0} +m_{block} v_{block} =(m_{bullet}+m_{block})v_{f} \\v_{f} =\frac{m_{bullet} v_{bullet0} }{m_{bullet}+m_{block}} \\v_{f} =\frac{0.0047kg*678m/s}{4.8kg+0.0047kg}\\v_{f} =0.66 m/s$

3 0

3 years ago

I need help on this and the first person who will answer this correctly gets BRANLIST​

I need help on this and the first person who will answer this correctly gets BRANLIST