Answer:
F = 352 N
Explanation:
we know that:
F*t = ΔP
so:
F*t = M
-M
where F is the force excerted by the wall, t is the time, M the mass of the ball, the final velocity of the ball and the initial velocity.
Replacing values, we get:
F(0.05s) = (0.8 kg)(11m/s)-(0.8 kg)(-11m/s)
solving for F:
F = 352 N
4 blocks north because he is it not asking for north east
One disadvantage<span> with </span>renewable energy<span> is that it is difficult to generate the quantities of electricity that are as large as those produced by traditional fossil fuel generators
One advantage</span><span> with renewable energy is that as it is renewable it is therefore sustainable and so will never run out.
I dont know who you are referring to as "rosa" i hope this helps
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The dinosaurs first appeared in the Mesozoic and the first mass extinction occurred during the Paleozoic. Moreover, humans first appeared in the Cenozoic.
<h3>The geological eras and biological events</h3>
The dinosaurs emerged during the Triassic Period of the Mesozoic Era, approximately 220-225 million years ago.
The first mass extinction occurred in the Ordovician Period (the second period of the Paleozoic Era).
The Cenozoic is the current geological Era that encompasses the last 60 million years.
Learn more about geological eras here:
brainly.com/question/1288853
Answer:
is the final velocity of the racket.
Explanation:
Given:
- mass of the racket,
- mass of ball,
- initial speed of racket,
- initial speed of ball,
- final speed of ball,
- time of contact of racket with the ball,
<u>By the law of conservation of momentum:</u>
where: 
final velocity of the racket
is the final velocity of the racket.
<u>By the Newton's second law of motion:</u>
............................(1)
where:
dp = change in momentum
dt = change in time
Change in momentum of ball:
Now, using eq.(1):
