1. A spring stretches 5.0 cm when a 200.-gram mass is hung from it and set to equilibrium. What is its spring constant?

2. When that spring in its unstretched state, if that mass is hung on the spring and
immediately let go, what will be the period (duration) of its oscillations?

3. A pendulum clock has a two-foot-long pendulum. The gears of the clock should be
calibrated so that how many cycles of the pendulum cause the clock hands to advance one
minute?

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

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Give an example in which the electrical energy changes to light energy