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A friend of yours is loudly singing a single note at 380 Hertz while racing toward you at 24.4 m/s on a day when the speed of sound is 341 m/s.
Determine what frequency do you hear?
Find what frequency does your friend hear if you suddenly start singing at 380 Hz?
A 50 kg bag of sand at 25 C falls 10 m onto the pavement and comes to an abrupt Stop. What is the change in internal energy in the sand
Two hockey players strike a puck of mass 0.164 kg with their sticks simultaneously, exerting forces of 1.24 103 N, Find the instantaneous acceleration of the puck
The deepest place in all the oceans is the Marianas Trench, where the depth is 10.9 km and the pressure is 1.10×10^8Pa. by how much does its volume decrease
A fireman 44 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 22° above the horizontal. If the speed of stream as it leaves the hose is 40m/s, at what height will stream of water strike the buil..
A horizontal spring is lying on a frictionless surface. One end of the spring is attached to a wall, What is the speed of the object at the instant when the spring is stretched by0.042 m relative to its unstrained length
a tropical fish aquarium with 5 ocean species of fish has flat glass sides. a beam of light from outside the aquarium
A 2.50-kg ball, moving to the right at a velocity of +3.83 m/s on a frictionless table, collides head-on with a stationary 8.10-kg ball. Find the final velocities of (a) the 2.50-kg ball and of (b) the 8.10-kg ball if the collision is elastic. (c) Fi..
An ideal gas expands isothermally, performing 4.36 multiplied by 103 J of work in the process. Calculate the change in internal energy of the gas
when a charged particle moves at an angle of 13deg with respect to a magnetic field it experiences a magnetic force of
Three resistors having resistances of R1=1.54ohms, R2=2.37ohms, and R3=4.78ohms respectively, Which resistor dissipates the most power and why
A 507g mass oscillates with an amplitude of 13.0 cm on a spring whose spring constant is 23.0 N/m. Determine the total energy
At a recent rock concert, a dB meter registered 114 dB when placed 1.30 m in front of a loudspeaker on the stage, What was the power output of the speaker
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