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An 85 Newton box of apples is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0.90 m/s each second. The push force has a horizontal component of 20 Newton and a vertical component of 25 Newton downward.
Find coefficient of kinetic friction between floor and box?
A ball is thrown toward a cliff of height (h) with a speed of30 m/s and an angle of 60 degrees above the horizontal. What is the ball's impact speed
A laser beam is projected through a diffraction grating which has a slit to slit separation of 2 microm (5000 lines/cm). What is the wavelength of the laser
You have two small 2.0- balls that have been given equal but opposite charges, but you don't know the magnitude of the charge. To find out, you place the balls a distance apart on a slippery horizontal surface, release them, and use a motion detec..
The greatest height reported for a jump into an airbag is 99.4 m by stuntman Dan Koko. In 1948 he jumped from rest from the top of the Vegas World Hotel and Casino. He struck the airbag at a speed of 39 m/s (88 mi/h).
A 6 cm diameter conducting loop with resistance of 10m\Omega is placed perpindicular to a variable magnetic field B. Determine the current and its direction induced in the loop
A projectile is launched from the ground and sails across an open field. At launch, its total mechanical energy is 100 J. At its highest point, is its potential energy greater than, less than, or equal to 100 J? Explain, assuming that air resistance ..
A toy car moves at a velocity of 65.00 m/s on a compass heading of 115degrees. What are the components, magnitude and direction of car.
a student calculates the unknown liquid to have a density of 0.87 gcm3. if the class average for the density of the
a. find the flares maximum height if it is fired on the level salt flats of utah.b. find the distance from its firing
A 40.0-N crate starting at rest slides down a rough 6.00-m-long ramp, inclined at 30.0° with the horizontal. What is the speed of the crate at the bottom of the incline
A small glass bead has been charged to + 25nC . A tiny ball bearing 3.0cm above the bead feels a 1.8×10?2Ndownward electric force. What is the charge on the ball bearing
Calculate the horsepower needed for a 1,114 kg car to climb up to an altitude of 1,097.91 m from sea level in 1.81 hours
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