On the moon, an object dropped from rest falls a distance of 1 m in 1 second. How far will it have fallen during 3 seconds?
A) 6 m B) 3 m C) 12 m D) 9 m E) 18 m
D
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RLC Circuits: A 120-V rms signal at 60 Hz is applied across a series combination of a 30-mH inductor and a 100-? resistor. What is the rms value of the voltage across the resistor?
A. 120 V B. 60 V C. 100 V D. 150 V E. 0.70 V
A tiny gun made of a strong but very light material fires a bullet more massive than the gun itself. For such a weapon
A) the target would be safer than the shooter. B) recoil problems would be lessened. C) conservation of energy would not hold. D) conservation of momentum would not hold. E) both conservation of energy and momentum would not hold.
Two charged bodies separated by a distance d exert an electrical force on each other. The distance d is doubled. The electrical force on each body is now 1/2 of the original force
a. True b. False Indicate whether the statement is true or false
Minerals that have the same combination of elements but have different atomic arrangements are called
A) polymorphs. B) polygonal. C) tetrahedra. D) polymers.