Three examples of a heat mover are __________, __________, and __________
Fill in the blank(s) with correct word
refrigerator, air conditioner, heat pump
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Refracting Telescope: The objective lens of a telescope has a focal length of 2.0 m and its eyepiece has a focal length of 1.0 cm. What is the magnification of this telescope when viewing Jupiter?
A. 0.0050 B. 0.50 C. 2.0 D. 20 E. 200
If a constant net force is applied to a body, the body is
1) accelerating. 2) moving at constant speed. 3) at rest or moving at constant velocity. If a body is moving at constant velocity, it must have 4) a constant net force acting upon it. 5) constant non-zero acceleration. 6) constant speed. 7) none of the above.
A photon whose energy is 8.00 × 10^?15 J is scattered off an electron at a 90° angle. What is the wavelength of the scattered wave?
a. 2.73 × 10^?11 m b. 2.25 × 10^?11 m c. 2.50 × 10^?11 m d. 2.40 × 10^?12 m e. 2.48 × 10^?11 m
According to general relativity, how is time affected by gravity?
A) Time runs slower in places where gravity is stronger. B) Time runs faster in places where gravity is stronger. C) Time is stopped in places where gravity is strong. D) Time is not affected by gravity.