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Question: A student in a parked car honks the horn, which has a `proper' frequency of 310 Hz. An observer in an approaching vehicle measures the frequency of the sound to be 333 Hz. Calculate the speed of the approaching vehicle. Use 340 m/s as the speed of sound in air.
A sophomore with nothing better to do adds heat to 0.350 kg of ice at 0.00°C until it is all melted. What is the change in entropy of the water
A truck with 0.420 m radius tires travels at 34 m/s. What is the angular velocity of the rotating tires in radians per second
You want to throw a pebble at a window located 9.6 m above the ground, making sure that the pebble hits the lowest part of the window with a strictly horizontal velocity. What is the velocity with which the pebble hits the window
Two point charges q = 74.0 nC and q = -74.0 nC are in vacuum located on the x axis at -30.0 cm and 30.0 cm, calculate the total electric flux through the y-z plane
A 110 g copper bowl contains 130 g of water, both at 24.0°C. A very hot 370 g copper cylinder is dropped into the water, causing the water to boil, How much energy (in calories) is transferred to the water as heat
Calculate the angular velocity of the wheel when the suitcase reaches the ground. compute the moment of inertia of the wheel.
a particle of mass m1 moving with a velocity u makes a head-on elastic collision with a particle of mass 2m initially
Light is incident normally on the largest face of an isosceles-right-triangle prism. What is the speed of light in this prism
At one point in a pipeline, the water's speed is 2.75 and the gauge pressure is 3.80×104. Find the gauge pressure at a second point in the line 10.8 lower
A 0.954-kg toy car is powered by four AA batteries (6.00 V total) connected directly to a small DC motor. What is the average current supplied to the car's motor
A 1.7m -long barbell has a 21kg weight on its left end and a 32kg weight on its right end. What is the torque due to gravity about the left end of the bar
A camera flash delivers 3.5kW of light power for 1.9ms, Find the total momentum carried by the flash p
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