A rock is thrown upward with a speed of 2.0m/s. a. How long will it take the rock to reach the peak?
b. What is the maximum height it can reach?

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

How is the gravitational force related to the distance between two objects?

70 give a real life example showing how sensory neurons work with the motor neurons