Which of the following caused the Moon to show (nearly) the same face to the Earth at all times?
A) tidal friction
B) spring tides
C) conservation of energy
D) atmospheric drag
E) gravitational encounters
A) tidal friction
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A car is traveling at 26.0 m/s when the driver suddenly applies the brakes, giving the car a constant deceleration. The car comes to a stop in a distance of 120.0 m
How fast was the car moving when it was 60.0 m past the point where the brakes were applied? A) 22.5 m/s B) 18.4 m/s C) 15.0 m/s D) 12.1 m/s E) 9.20 m/s
Charge of uniform density (80 nC/m3) is distributed throughout a hollow cylindrical region formed by two coaxial cylindrical surfaces of radii 1.0 mm and 3.0 mm. Determine the magnitude of the electric field at a point which is 4.0 mm from the symmetry axis.
A. 7.9 N/C B. 10 N/C C. 9.0 N/C D. 8.9 N/C E. 17 N/C
Which of the following statements is incorrect?
What will be an ideal response?
A runner generates 1260 W of thermal energy. If this energy has to be removed only by evaporation, how much water does this runner lose in 15 minutes of running? The latent heat of vaporization of water is 22.6 × 105 J/kg
A) 50 g B) 500 g C) 35 g D) 350 g E) 40 g