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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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.
The ozone layer lies in the mesosphere
Indicate whether the statement is true or false