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A solid cube has its superficialExpansivity as 1.01*10-6 K-1 Find it's cubic expansivity
For the object whose motion is described in Problem 2.29, find its velocity at the following times: (a) 3.0 s,. (b) 10 s, and (c) 24 s.
A cat steps off a ledge and drops to the ground in 1/2 second. What is its speed on striking the ground and how high is the ledge from the ground?
The pressure of the atmosphere is 1.02 x 105 Pa.
Calculate the pressure of the air in the flask
What is the electrostatic force of attraction between a 5.2 X 10 4 C charge and a 7.1 X 10 -2 C charge if they are separated by a distance of 7 meters (m)?
Two ball bearings with opposite charges are 1.11 m apart on the floor. What are their charges if they are attracted to each other with a force of 5.11 N?
What are the two types of collision. Then give a brief and concise description.
A car of mass 2500 kg and moving at 3 m/s, northeast collides with 3800 kg car moving northwest at 2 m/s. Find their velocity, assuming that the collision is perfectly inelastic.
Car A of mass 2000kg moving at 73 km/h tries to overtake car B of mass 1250 kg moving at 60 km/h,east. Car A collides with car B. The cars stick together after collision. Find their velocity after collission.
Ben Geller carries a 300- N suitcase up three flights of stairs ( a height of 12.0m ) and then pushes it with a horizontal force of 60.0 N at a constant speed of 0.6 m/s for a horizontal distance of 25.0 meters , how much word does Ben do on his suitcase during this entire motion ?
