After physical activity, a person should drink _____ of fluids for each pound of body weight lost.
a. 4 ounces
b. 1 ounce
c. 1 cup
d. 2 ounces
e. 2 or more cups.
Answer: e. 2 or more cups.
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Four point charges are located at the corners of a square, 1.00 m by 1.00 m. On each of two diagonally opposite corners are 1.00 ?C charges. On each of the other two corners are -1.00 ?C charges. What is the direction of the force on each charge?
A. positive charges away from away from the center of the square, negative inward toward center B. negative charges away from away from the center of the square, positive inward toward center C. positive and negative charges both toward the center of the square D. positive and negative charges both away from the center of the square E. no direction (net force = 0)
Which component of Earth's geology is believed to have been largely responsible for the long-term climate stability that has allowed life to evolve?
A) global magnetism B) seismic activity C) plate tectonics D) erosion and weathering
An RL series circuit has the following components: 6.0-mH coil, 0.50-W resistor, 12-V battery, ammeter, and switch. What is the time constant of this circuit?
a. 2.5 × 10^-2 s c. 200 s b. 12 × 10^-3 s d. 5.0 × 10^-3 s
A block lies on a smooth inclined plane tilted at an angle of 35° to the horizontal. (a) Draw the free-body diagram for the block. (b) Determine the block's acceleration as it slides down the inclined plane
(c) If the block started from rest 8.5 m up the incline from its base, determine the block's speed when it reaches the bottom of the incline. (d) How long did it take the block to reach the bottom of the inclined plane?