Which has the greater kinetic energy?
A) a car traveling at 30 km/h
B) a car of half the mass traveling at 60 km/h
C) both the same
D) need more information
Answer: B
Physics & Space Science
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A 24.0 N picture hangs from a nail in the wall. The diameter of the nail is 2.00 mm. The shear stress on the nail is
a. 
b. 
c. 
d. 
e. 
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A light bulb operating at a voltage of 120 Volt has a power of 60 W. What is the current flowing through this bulb?
A) 1.5 A B) 2.5 A C) 0.5 A D) 2 A E) 1 A
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Plutons are
a. bodies of intrusive igneous rocks. b. solids made of tephra. c. active volcanoes. d. extinct volcanoes.
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Photons associated with the magnetic field used in magnetic resonance imaging have considerably less energy than the photons used in CT scans
Indicate whether the statement is true or false
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