What is the work in tronsformation irreversible?

Jeremy accidently dropped his toy stuffed animal from the balcony of his apartment on the fourth floor. The toy hit the ground at a velocity of 16.0 meters/second. At impact, it took 2.0 seconds for the toy's velocity to reach 0 meters/second.

Green light shines through a 130-mm-diameter hole and is observed on a screen. if the hole diameter is increased by 20%, does the circular spot of light on the screen decrease in diameter, increase in diameter, or stay the same?

A student is asked to design a cart that will have the smallest force of impact when it collides with another object. Which of these would be the best design

A propeller blade at rest starts to rotate from t = 0 s to t = 5.0 s with a tangential acceleration of the tip of the blade at 3.00 m/s2. The tip of the blade is 1.5 m from the axis of rotation. At t = 5.

1. A compact car, mass of 725 kg, is moving at 100m/s. a. Find its momentum. b. At what velocity is the momentum of a larger car (than the one above) with a mass of 2175 kg, equal to that of the smaller car?

Use the graph of distance versus time to complete the sentences. The cars on the higher track travel the cars on the lower track, in the same time. This means that the cars on the higher track have a average speed than those on the lower track.

List at least 3 physical properties that the professor describes of his newly discovered flubber

7. Who is Mara Grunbaum?

How much work is done in holding a 10 newton sack of potatoes while waiting in line at the grocery store for 3 minutes.

Define light year and explain how and why light years are used to measure distances in the universe