Physics, 21.01.2021 01:00 Queenjlife2583
1. A 1.5 kg baseball is pitched at 38 m/s and is hit by the batter. It heads directly back at the pitcher at 27 m/s.
a) Find the impulse applied to the ball.
b) If the bat is in contact with the bat for 0.45 sec, how much force was applied.
Show all your work.
2. A 2.0 kg snowball is thrown at 18 m/s. It hits and sticks to a 5.2 kg package sitting on a porch. How fast will they now be moving? Show all your work, assume the system is closed.
3. A skater begins to spin with arms held out at shoulder height. The skater wants to match the speed of the spin to the beat of the music. How does the skater use knowledge of the conservation of momentum to do this?
Answers: 2
Physics, 21.06.2019 18:30, hunteryolanda82
Which of the following correctly describes the early view of catastrophism?
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Physics, 22.06.2019 12:30, clmorcutt420
Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.
Answers: 1
1. A 1.5 kg baseball is pitched at 38 m/s and is hit by the batter. It heads directly back at the pi...
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