If both mass and velocity of a ball are doubled, the kinetic energy is increased by a factor of:
a. 16.
c. 4.
b. 8.
d. 2.
B
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A beta particle is another name for a helium nucleus
Indicate whether the statement is true or false
After taking a shower and stepping outside the shower stall, the chill you often feel is mainly due to
A) evaporation. B) condensation. C) sublimation. D) none of the above
A double-slit interference experiment is performed in the air. Later, the same apparatus is immersed in benzene (which has an index of refraction of 1.50), and the experiment is repeated
When the apparatus is in benzene, you observe that the interference fringes are A) more widely spaced than when the apparatus is in air. B) equally spaced as when the apparatus is in air. C) more closely spaced than when the apparatus is in air.
If a net force is applied to an object, what is guaranteed to change?
A) the object's momentum B) the object's speed C) the object's direction of motion D) the object's mass E) the object's weight