Where is it low tide?
A) point 1 only
B) point 2 only
C) points 1 and 3
D) points 2 and 4
D) points 2 and 4
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The ozone layer lies in the mesosphere
Indicate whether the statement is true or false
A particle is moving with a constant acceleration of 4.0 m/s2. Its speed at t = 1.0 s is 4.0 m/s and at t = 3.0 s it is 12.0 m/s. What is the area under the position-time graph for the interval from t = 1.0 s to t = 3.0 s?
A. 8.0 m/s B. 8.0 m C. 12 m D. 16 m E. 16 m/s2
A car needs to generate 75.0 hp in order to maintain a constant velocity of 27.3 m/s on a flat road. What is the magnitude of the total resistive force acting on the car (due to friction, air resistance, etc.)? (1 hp = 746 W)
A) 2.05 × 103 N B) 2.75 N C) 1.03 × 103 N D) 2.87 × 103 N
When there is electric current through a metal wire, the moving charges are
A) only protons. B) only electrons. C) both protons and electrons. D) positive metal ions. E) negative metal ions.