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A passenger on a stopped bus notices that rain is fallingvertically just outside the window. When the bus moves with theconstant velocity, the passenger observes that the fallingraindrops are now making an angle of 19º with respect to the vertical. What is the ratio of the speed of the raindrops to the speed of the bus?
he density of free electrons in gold is 5.90x10^28 m^-3. The resistivity of gold is 2.44x10^-8 ohms.m at a temperature of 20 C, what is the drift velocity of the electrons in the wire
A rowboat crosses a river with a velocity of 3.87 mi/h at an angle 62.5° north of westrelative to the water. The river is 0.700 mi wide and carries an eastward current of1.25 mi/h. How far upstream is the boat when it reaches theopposite shore?
A 58.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.38 102 m/s from the top of a cliff 156 m above level ground, What is the initial total mechanical energy of the projectile
An archer pulls the bowstring back for a distance of 0.470 m before releasing the arrow. What is the elastic potential energy of the drawn bow
A beam of natural light is incident on an air-glass interface(nti=1.5) at 40 degrees. Compute the degree ofpolarization of the reflected light
Calculate the theoretical resolution (assuming no lens aberrations) for green light
A runner with the weight of 686.7 N accelerates at a constant rate from 0 to 45 m/s in the first 2 seconds of a 100 m sprint. What is the net force
a beam of polarized light strikes two polarizing sheets.The characteristic directions of the second is 90 degree with respect to incident light. Find angle betta for a transmitted beam intensity that is 0.10 times the incident beam intensity
question a body slides down a plane inclined at 40 degrees to the horizontal with an acceleration of 2.3 meterssecond2.
A horizontal pipe 15.00 cm in diameterhas a smooth reduction to a pipe 7.50cm in diameter. If the pressure of the water in the larger pipe is7.50*104 Pa and the pressure in the smallerpipe is 6.00*104 Pa, at what rate does water flow through the pi..
A longitudinal wave travels on a slinky or any long spring. The wave is represented by the equation x(x, t) = 2.10 cm cos(2000 rad/s t + 40.0 m-1x)
q1. a 92 kg man standing on a surface of negligible friction shoves a 73 g stone lying at his feet giving it a velocity
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