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You are traveling in a car toward a hill at a speed of 36.4 mph. The car's horn emits sound waves of frequency 231 Hz, which move with a speed of 340 m/s.
(a) Determine the frequency with which the waves strike the hill.
(b) What is the frequency of the reflected sound waves you hear?
(c) What is the beat frequency produced by the direct and the reflected sounds at your ears?
A weight of 45.0 N is suspended from a spring that has a force constant of 180 N/m. Determine the maximum value of the driving force
water flows with soeed1 m/s from a small hole made at the bottom of a tank filled with water. find height of the tank
A 0.15 kg particle moving to the left with a speed of 0.05 m/s, Determine the final velocity of each particle and the fraction of total energy transferred to the 0.27 kg particle
You are given a pendulum composed of a 0.038 kg mass on the end of a 0.6 m long massless string. compute the velocity of the mass as it passes through the vertical
when it falls back it hits the ground with speed v1=50m/s. The mass of the ball is m=20g. Illustrate what is the total work done by the drag force while the ball is in the air?
Determine the maximum horizontal force that can be applied to the block before it slips.
With what frequency should the tip be tapped to make the strip oscillate with maximum amplitude?
Two particles are fixed on an x axis. Particle 1 of charge 51.50 μC is located at x = -33.2 cm; particle 2 of charge Q is located at x = 10.10 cm. Particle 3 of charge magnitude 37.7 μC is released from rest on the y axis at y = 11.30 cm.
Someday in the future, an astronaut on Mars (where gMars = 3.71 m/s^2) might lean over the edge of 25.0-meter-tall spacecraft , What will be the package's speed when it strikes the ground
How fast is the roller coaster moving at the top of the loop
How much work is needed to move a 120-kg refrigerator.
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.2 m/s2, How fast will the automobile be traveling at that instant
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