Which of the following changes will increase the frequency of an oscillating pendulum? a. an increase in the mass of the pendulum.
b. an increase in the initial height of release
. c. an increase in the length of the rope.
d. more than one of the above
e. none of the above
explain your answer in your own words.
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What is the role of the ocular lens?

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

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.