A(n) 0.237 kg baseball is thrown with a speed of 14 m/s. It is hit straight back at the pitcher
a)What is the magnitude of the impulse delivered to the ball?
Answer in units of kg · m/s.
b)Find the average force exerted by the bat on
the ball if the two are in contact for 0.00129 s.
Answer in units of N

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.