Of the following photons, which has the highest energy?
a. infrared
b. microwave
c. visible
d. ultraviolet
d
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A spring is stretched from its equilibrium position 10 cm when a 1 kg mass is attached to it. Removing the 1 kg mass and replacing it with a 0.50 kg mass then releasing the spring, how high will the 0.50 kg mass rise above the point where it is released?
A. 0.44 m B. 0.24 m C. 0.80 m D. 1.0 m
A block of ice slides down a ramp. For which height and base is the acceleration the greatest?
A. Height 4 cm Base 12 Cm B. Height 3 cm base 6 cm C. Height 2 cm Base 5 cm D. height 1m base 3
In which is the temperature greater?
A) boiling-hot tea in a cup B) boiling-hot tea in a fire-engine pail C) both the same
Why do Uranus and Neptune appear blue?
A) Methane gas absorbs all colors except blue. B) Gas molecules in their atmosphere preferentially scatter blue light. C) Small dust grains preferentially scatter blue light. D) Methane snowflakes absorb all colors except blue, which they reflect.