A load is being lifted vertically upwards by means of two cables attached to it. The first cable exerts a force of 600 N at an angle of 35.0° to the left of the vertical. The second cable exerts a force of 1300 N
At what angle to the right of the vertical is the second cable pulling? A) 15.4°
B) 16.2°
C) 30.8°
D) 67.8°
E) 75.8°
A
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A hydrogen atom that emits an alpha particle is a routine occurrence in
A) the environment. B) laboratories. C) unlikely. D) impossible.
What is meant by ‘net charge?'
a. the total amount of positive charge on an object b. the total amount of negative charge on an object c. the total amount of neutral charge on an object d. A minus B
Unpolarized light passes through three polarizing filters. The first one is oriented with a horizontal transmission axis, the second filter has its transmission axis 25.7° from the horizontal, and the third one has a vertical transmission axis
What percent of the light gets through this combination of filters? A) 92.4% B) 50.0% C) 0.00% D) 7.6%
A fixed amount of an ideal monatomic gas is maintained at constant volume as it is cooled by 50 K. This feat is accomplished by removing 400 J of energy from the gas. How much work is done on the gas during this process?
A) 0 J B) 400 J C) -400 J D) -200 J E) 200 J