What is the direction of at point O?

A. A
B. B
C. C
D. D
E. E
F. F
T. Zero


T. Zero

Physics & Space Science

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A pendulum consists of a mass m suspended from a string of length L. When the pendulum is swinging, how much greater is the mass's potential energy when the string is displaced from the vertical by the angle ? than when the mass is at the lowest position?

a. mgLsin? b. mgLcos? c. mgL(1 – sin?) d. mgL(1 – cos?)

Physics & Space Science

The kilowatt-hour is a unit of ______________

Fill in the blank(s) with correct word

Physics & Space Science

A large stone is resting on the bottom of the swimming pool. The normal force of the bottom of the pool on the stone is equal to the:

a. weight of the stone. b. weight of the water displaced. c. sum of the weight of the stone and the weight of the displaced water. d. difference between the weight of the stone and the weight of the displaced water.

Physics & Space Science

A terminal moraine marks the

A) farthest a glacier can spread from side-to-side. B) location where a glacier started to form. C) farthest point of a glacier's advance. D) location where outwash forms.

Physics & Space Science