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A 9.00-kg block of ice, released from rest at the top of a 1.44-m-long frictionless ramp, slides downhill, reaching a speed of 2.84 m/s at the bottom. A) What is the angle between the ramp and the horizontal? B) What would be the speed of the ice at the bottom if the motion were opposed by a constant friction force of 11.0 N parallel to the surface of the ramp? For some reason I cant seem to get the solution right
A runner is practicing on a circular track that is 535 m in circumference. From the point farthest to the east on the track, he starts off running due south and follows the track as it curves around toward the west.
A train traveling at v0 = 28.0 m/s begins to brake by applying a velocity-dependent instantaneous acceleration a(v) = ? /(v+u) m/s^2, Determine the distance traveled by the train until it comes to a complete stop
When any radioactive dating method is used, experimental error in the measurement of the sample's activity leads to error in the estimated age. find the age of the fossils
Suppose, you live in a place on the equator. There is a vertical rod of length 2m on your roof top. One morning, you went to the roof top and observed the shadow of the rod. If the length of the rod was 1m, then what time was that?
A block with mass m1 = 8.8 kg is on an incline with an angle ? = 39.0° with respect to the horizontal. What is the minimum spring constant of the spring to keep the block from sliding
A certain pipe has resonant frequencies of 518 Hz, 666 Hz, and 814 Hz, with no other resonant frequencies between these values. What is the fundamental frequency of this pipe
A small mailbag is released from a helicopter that is descending steadily at 2.04 m/s. (a) After 4.00 s, what is the speed of the mailbag? (b) How far is it below the helicopter? (c) What are your answers to parts (a) and (b) if the helicopter is ..
Io, a small moon of the giant Jupiter, has an original period of1.77 days and an orbit radius equal to 4.22 x 10^5 km. From thesedata, determine the mass of the Jupiter
20 joules of work have been done in throwing a ball upwards how much kinetic energy it given to the ball
a motorist drives north for 32 min at 85 kmh and then stops for 15 min. he then continues north traveling 125 km for
From what height did the student fall? Assume that the only force acting on him throughout the collision is that as a result of the ground.
Vector A points in the negative x direction. Vector B points at an angle of 60 above the positive x axis, Given A+B+C=0, find the magnitude of A and B
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