Increasing the speed of waves on a guitar string increases the _________ of the sound it produces
Fill in the blank(s) with correct word
frequency (or pitch)
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A 30.0-kg object experiences a drag force due to air resistance with a magnitude proportional to the square of its speed. The object falls with an acceleration of 4.00 m/s2 downward when it is falling downward at 70.0 m/s. What is its terminal speed?
A) 110 m/s B) 157 m/s C) 91.0 m/s D) 172 m/s E) 108 m/s
On a frictionless horizontal table, two blocks (A of mass 2.00 kg and B of mass 3.00 kg) are pressed together against an ideal massless spring that stores 75.0 J of elastic potential energy
The blocks are not attached to the spring and are free to move free of it once they are released from rest. The maximum speed achieved by each block is closest to: A) 6.71 m/s (A), 4.47 m/s (B) B) 4.47 m/s (A), 6.71 m/s (B) C) 5.48 m/s for both D) 6.12 m/s (A), 5.00 m/s (B) E) 5.00 m/s (A), 6.12 m/s (B)
The tensile yield stress in ductile metals and polymers is approximately _____________ % of the compressive yield strength.
Fill in the blank(s) with the appropriate word(s).
What causes the meteor showers we witness on Earth? a. Earth passes through comet dust particles
b. Earth passes through remnants of an impacted asteroid. c. Earth passes through the asteroid belt. d. Earth passes through the coma of a comet. e. Earth passes through solar wind particles.