Between July 1969 and December 1972, 17 people reached the surface of the Moon
a. True
b. False
Indicate whether the statement is true or false
False
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Compared to a smaller-objective lens, a larger-objective lens makes a star's image
a. brighter. b. dimmer. c. no effect.
The energy stored in a pile driver is an example of __________ energy
Fill in the blank(s) with correct word
A 0.150-kg air track cart is attached to an ideal spring with a force constant (spring constant) of 3.58 N/m and undergoes simple harmonic oscillations. What is the period of the oscillations?
A) 2.57 s B) 0.527 s C) 0.263 s D) 1.14 s E) 1.29 s
One of the products of combustion is water. Why doesn't this water extinguish the combustion?
A) While areas of combustion are being extinguished, new areas are combusting. B) Combustion only produces micro amounts of water. C) The chemical combustion reaction is happening too fast for the water to have an effect on the fire. D) This water is in the gaseous phase and merely floats away from the fire.