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A 119.0-kg block is on a horizontal frictionless surface, on top of it is a second smaller block of 55.0-kg. A horizontal force F of 499.9 N is applied to the upper block which accelerates with 6.32 m/s2. Find the coefficient of kinetic friction between the two blocks.
A radio station broadcasts at a rate of 89.3 million cyces each second. what is the period of this wave and if the wavelength is 3.359 meters, what is the speed of this radio wave
Calculate the kinetic energy a proton gains if it is accelerated, throug a potential difference of 1.00 V
A person weighs 689 N and the head is 53 N the average density of the person is 1010 kg/cubed meters how much force in N is required to keep a persons head out of the water.
A spy satellite is in circular orbit around Earth. It makes one revolution in 5.97 hours. How high above Earth's surface is the satellite
A spectral line from the left side of Saturn's rings, as you see them, Which way (direction) is Saturn rotating, and why
A prism has a vertex angle of 60° and an index of refraction of 1.52. What is the minimum angle of incidence, measured away from the vertex
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
In a hydraulic lift, the maximum gauge pressure is 18.7 atm. what is the heaviest vehicle that can be lifted
Two narrow slits 0.286 mm apart are illuminated by light of wavelength 542. nm. The light falls on a screen 1.60 m away from the slits. What is the angular seperation between adjacent maxima
You throw a ball vertically upward from the edge of the roof of the Bisdorf building with a speed 15.0 m/s. Find a) the position and velocity of the ball 1.00 s after leaving your hand.
During a day time football game you notice that a player's reflective helmet forms an image of the sun 3.2 cm behind the surface of the helmet
A crate of mass 10.6 kg is pulled up a rough incline with an initial speed of 1.54 m/s. The pulling force is 108 N parallel to the incline, What is the change in kinetic energy of the crate
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