Physics, 04.12.2020 02:40 deadman7628
2. An object is supported by a spring attached to the ceiling. What are the forces acting on the object?
a. The mass of the object in the downward direction and the supporting force of the spring in the
upward direction.
b. The mass of the object in the downward direction and the supporting force of the spring in the
downward direction.
c. The weight of the object in the upward direction and the supporting force of the spring in the
downward direction.
d. The weight of the object in the downward direction and the supporting force of the spring in the
upward direction.
e. The weight of the object pulling on the Earth and downward supporting force of the spring
Answers: 1
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Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?
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Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?
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2. An object is supported by a spring attached to the ceiling. What are the forces acting on the obj...
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