What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 68 m?

a. 5 Hz
b. 23120 Hz
c. 340 Hz
d. 0.2 Hz


a

Physics & Space Science

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The static friction force on an object

A. can never be greater than the kinetic friction force on it under the same circumstances. B. can never accelerate the object. C. can never be greater than the normal force on it. D. can never be greater than the object's weight. E. None of the choices are correct.

Physics & Space Science

If 10 J of work is used in pushing 1 C of charge into an electric field, its electric potential relative to its starting position is

A) less than 10 V. B) 10 V. C) more then 10 V. D) none of the above

Physics & Space Science

A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s2. If the car comes to a stop in a distance of 30.0 m, what was the car's original speed?

A) 10.2 m/s B) 14.5 m/s C) 105 m/s D) 210 m/s E) 315 m/s

Physics & Space Science

Spiral tracers tend to be old, luminous stars

Indicate whether the statement is true or false

Physics & Space Science