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A truck horn emits a sound with a frequency of 246 Hz. The truck is moving on a straight road with a constant speed. If a person standing on the side of the road hears the horn at a frequency of 270 Hz, then what is the speed of the truck? Use 340 m/s for the speed of the sound.
(in m/s)
A 4.90?F capacitor that is initially uncharged is connected in series with a 8.00k? resistor, A long time after the circuit is completed (after many time constants) what is the voltage drop across the capacitor
A rifle with a weight of 35 N fires a 3.0-g bullet with a speed of 230 m/s. Find the recoil speed of the rifle
An electron is accelerated by a constant electric field of magnitude 285 N/C. a. Find the acceleration of the electron (N) b. If the string can withstand a maximum tension of 0.180 N, what is the smallest value d can have before the string breaks.
Two small nonconducting spheres have a total charge of 89.0?C , Q1
In a mass spectrometer, a singly ionized 24Mg ion has a mass equal to 3.983 10-26 kg and is accelerated through a 2.60-kV potential difference. Find the radius of curvature of the ion's orbit
From what height did the student fall? Suppose that the only force acting on him all through the impact is that because of the ground.
A mass M of 1.19 kg is attached to the end of a string whose length is 0.650 m. The mass slides without friction on a horizontal surface as indicated. If the string can withstand a maximum tension of 55.5 N, what is the maximum tangential speed th..
A 74 kg diver steps off a 14 m tower and drops from rest straight down into the water. If he comes to rest 4.4 m beneath the surface, identify the average resistance force exerted on him by the water.
A river flows due east at 1.50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 15 m/s due north relative to water.
A curved plate of mass M is placed on the horizontal, frictionless plane as shown. How high the puck will shoot up from the plate
A particle moving along the x axis in simple harmonic motion starts from its equilibrium position, Determine the maximum speed and the earliest time
A 46kg box is being pushed a distance of 7 m across the floor by the force vector P whose magnitude is 144N. The force vector P is parallel to the displacement of the box.
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