A 3,000 kg truck experiences a net force of 2,000 N. What is its acceleration?
0.667 m/s2
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To drive a typical car at 40 mph on a level road for one hour requires about 3.2 × 107 J of energy. Suppose we tried to store this much energy in a spinning, solid, uniform, cylindrical flywheel
A large flywheel cannot be spun too fast or it will fracture. If we used a flywheel of diameter 1.2 m and mass 400 kg, what angular speed would be required to store 3.2 × 107 J? A) 3600 rad/s B) 940 rad/s C) 530 rad/s D) 5500 rad/s E) 1800 rad/s
Gauss's Law: Two point charges of +5.00 ?C and +8.00 ?C are placed inside a cube having sides 0.100 m long. What is the net electric flux passing through the surface of the cube? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A. 0.340 × 106 N m2/C B. 0.450 × 106 N m2/C C. 1.47 × 106 N m2/C D. 3.80 × 106 N m2/C E. 4.20 × 106 N m2/C
Consider the displacement vectors shown below.
a) Which vector (if any) is equal to 
?
(b) Which is not equal to but has the same magnitude?
(c) Which is equal to 
?
(d) Which is equal to 
?
Which of the following statements is false?
a. Sills are discordant rock bodies. b. Sills are formed from magma. c. Sills are tabular in shape. d. Sills consist of intrusive igneous rock.