In the troposphere segment of the Earth's atmosphere, as you increase in altitude the temperature decreases. This means the speed of sound decreases as you increase in altitude
a. True
b. False
Indicate whether the statement is true or false
True
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Determine the equivalent capacitance of the combination shown when C = 15 mF.
A. 20 mF B. 16 mF C. 12 mF D. 24 mF E. 75 mF
The kilogram is currently defined as
A) the mass of a platinum-iridium cylinder kept in Sévres, France. B) the weight of a platinum-iridium cylinder as measured on the Earth's moon. C) the mass of 5.9786332 × 1026 protons. D) the mass of one liter of pure water, free of air, at standard temperature and pressure. E) the mass of a cube of pure water, free of air, 10 cm on each side, at standard temperature and pressure.
The force fo static friction between two surfaces is parallel to the surface of contact, and in in the direction that opposes relative motion
Indicate whether the statement is true or false
A wheel (radius = 0.20 m) starts from rest and rotates with a constant angular acceleration of 2.0 rad/s2 . At the instant when the angular velocity is equal to 1.2 rad/s, what is the magnitude of the total linear acceleration of a point on the rim of the wheel?
a. 0.40 m/s2 b. 0.29 m/s2 c. 0.69 m/s2 d. 0.49 m/s2 e. 0.35 m/s2