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A crate that weighs 20 Newton starts from rest and slides down a rough 5.0 meter long ramp, Inclined at 25o with the horizontal. During this slide 20 Joule of Energy is lost due to friction.
A. Obtain what is the Kinetic Friction Force on the crate?
B. Evaluate the Speed of the crate at the bottom of the ramp?
Lou bets an innocent stranger that he can place a 8.0 kg block against the side of a cart, Find the minimum acceleration for which Lou will win the bet
Waves from a radio station have a wavelength of 300m. They travel by two paths to a home receiver 20.0km from thetransmitter. What is the minimum distance from the mountain to the receiver
An astronaut lands on a new planet of radius R= 3000 km, and wants to measure its density. Estimate the escape velocity from that planet
An air bubble rises from the bottom of well where the temperature is 25 degree C, to the surface where the temperature is 27 degree C. Find the percent increase in the volume of the bubble if the depth of the well is 5 m. Atmospheric pressure is 101...
An electron with mass 9.11×10-31 kg moves with a speed of 2.10×106 m/s in a circle of 2.94 cm radius under the influence of a magnetic field. What is the radius of the proton's orbit
A 0.449 kg ice puck, moving east with a speed of 2.91 m/s, has the head-on collision with a 0.846 kg puck initially at rest. Assume a perfectly elastic collision, what will be the speed and direction of each object after the collision.
Many star are observed to have rotation periods that lengthenslightly with time, a phenomenon called "spin down." The rate ofslowing of the Crab Star is 3.50*10-13 s per second, which implies that if thisrate remains constant, the Crab Comet will s..
A near-sighted person wears an old prescription, where the power of his glasses is - 3.23 Diopters. What is the far point of this person
As you walk away from a vertical plane mirror, your image in the mirror
food is refrigerated to slow down reactions that result in the food spoiling. a slightly bruised apple will rot four
A parallel combination of a 1.09-?F capacitor and a 2.81-?F one is connected in series to a 4.33-?F capacitor. This three-capacitor combination is connected to a 15.3-V battery
Life scientists use ultracentrifuges to separate biological components or to remove molecules from suspension. Samples in a symmetric array of containers are spun rapidly about a central axis.
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