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The handle of a 22-kg lawnmower makes a 35 degree angle with the horizontal. If the coefficient of friction between the lawnmower and ground is 0.68, what magnitude of force is required to push the mower at constant velocity? Assume the force is applied in the direction of the handle. Compare the force with the mower's weight.
a rotating merry-go-round is essentially a disk with mass of 250 kg an radius of 2.5m, Determine the final angular speed of the merry-go-round/son combination
You are pulling a suitcase through an airport at a constant speed. The handle of the suitcase makes an angle of 60 degrees with respect to the horizontal direction, what is the contact force due to the floor acting on the suitcase
If a constant force of 416 N acts in the direction opposite to the body's motion, how long must the force act to bring the body to rest
A Hooke's-law spring of spring constant 4900 N/m is compressed by 0.02 m. How high does the bullet go
An explosion breaks an object into two pieces, one of which has 1.5 times the mass of the other. how much kinetic energy did each piece acquire
A child on a boat throws a 5.40 kg package out horizontally with a speed of 12.0 m/s. determine the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 26.5 kg and the mass of boat is 55.5 kg.
A proton and an electron are moving due east in a constant electric field that also points due east, Determine the magnitude of the acceleration of the proton and the electron
Florence, who weighs 120 lbs, stands on a bathroom scale in an elevator. What would the scale read when the elevator is accelerating downward at 2m/s2.
After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. Calculate the average density of the white dwarf
Is it safe to use zero for the initial velocity in equations?
object o stands on the central axis of a concave spherical mirror at a distance of 40 cm. the distance between the
A pill bottle 3.0 cm tall is placed 12 cm in front of a mirror. An upright image 9.0 cm tall is formed. What kind of mirror is this, and what is its radius of curvature?
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