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Two solid spheres simultaneously start rolling( from rest) downan incline. One sphere has twice the radius and twice the mass ofthe other.
a) Which reaches the bottom of the incline first?
b) Which has the greater speed there?
c) Which has the greater total kineticenergy at the bottom?
A 47.0 kg woman stands up in a 70.0 kg canoe of length 5.00 m . She walks from a point 1.00m from one end to a point 1.00m from the other end. how far does the canoe move during this process
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.0 m/s2. How fast will the automobile be traveling at that instant
An objects angular momentum changes by 10 kgm^2/s in 2.0 s. What magnitude average torgue acted on this object
A 4.20–kg block is set into motion up an inclined plane with an initial speed of vi = 7.40 m/s (see figure below). The block comes to rest after traveling d = 3.00 m along the plane, which is inclined at an angle of ? = 30.0° to the horizontal.
A 12.00kg runaway grocery cart runs into a spring with spring constant 260-N/m and compresses it by 65 cm. What was the speed of the cart just before it hit spring.
Two round concentric metal wires lie on a tabletop, one inside the other. The inner wire has a diameter of 18.0cm and carries a clockwise current of 14.0 A, as viewed from above, and the outer wire has a diameter of 38.0cm .
A massless rod of length 1.00 m has a 2.00-kg mass attached to one end and a 3.00-kg mass attached to the other. What is the angular speed of this system
Jane and John, with masses of 51 kg and 66 kg, correspondingly, stand on a frictionless surface 13m apart. John pulls on a rope that connects him to Jane, giving Jane an acceleration of 0.9m/s2 toward him.
Tarzan swings on a 22.8 m long vineinitially inclined at an angle of 22° from the vertical. What is his speed at the bottom of theswing if he starts from rest
An ac generator supplies 20 A at 220 V to a 10,000 V power line. If the step-up transformer has 110 turns in its primary coil, how many turns are in the secondary coil
the pilot of an airplane traveling 170 kmh wants to drop supplies to flood victims isolated on a patch of land 140 m
A proton (1e) and an alpha particle charge = 2e, mass = 6.64 x10^-27 kg are initially at rest, separated by 4.00 x 10^-15 m. Find the speeds of the proton and alpha particle
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