A pitcher uses a pitching machine to improve his batting average. To do so, he places the 55 kg machine on a frictionless surface. The machine fires the 0.45 kg baseball with a speed of 50 horizontally toward him. What is the magnitude of the recoil velocity in of the machine?

Suppose that a 5 kg mass spins in a circle of radius 2 m at an angular velocity of 6 . What is the linear speed of the mass in ?

Consider a perfectly inelastic collision between a small car and a very large truck. The car and the truck experience different

SHOW ALL WORK on the following problems.  After you submit your test, take pictures of your work and upload them to Canvas using the link “TEST 3 Work” that is underneath the link for this test in Canvas.  Make sure that you show all work and write neatly and darkly enough for me to read it.  If I can’t see or read your work, I cannot give you any credit.   Please be sure to submit your work for these problems in “Test 3 Work” in the TEST REVIEW AND TEST MODULE by 8:00 am Wednesday, June 18, 2025.

A 60 kg person climbs up a 5 m high staircase in 15 seconds. How much power in Watts is expended by the person?

A 35 kg block is attached to a spring of force constant 800 . The block is pulled 6 cm to the left of equilibrium and released from rest. Find the speed in of the block as it passes through equilibrium if the horizontal surface is frictionless. Use energy considerations to work the problem. 

____ is the simplest and oldest method of spanning a passageway.  

Christianity was recognized as the official religion of Rome in the early fourth century CE by which of the following?  

The work employs .

The art work displays the law code of the during his reign of 1792 to1750 BCE.