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Eight 60 kg skaters join hands and skate down an ice rink at4.6m/s. Side by side; they form a line 12 m long. The skater at one end stops suddenly, and the line proceeds to rotate strictly about that skater. Discover (a) angular speed. (b) Linear speed of outermost skater, and (c) the force that should be exerted on the outermost skater.
A 2.9-kg toy locomotive is pulling a 1.7-kg caboose. The frictional force of the track on the caboose is 0.54 N backward along the track. If the train is accelerating forward is 2.6 m/s2, what is the magnitude of the force exerted by the locomotive o..
In a downtown office building you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width of each section of the door if a force of 64 N applied to the outer edgE
An empty storage tank has a volume of 140 ft3. What is the buoyant force exerted on it by the air
A volleyball is spiked so that it has an initial velocity of 16.5 m/s directed downward at an angle of 53.1 ° below the horizontal. determine the horizontal component of the ball's velocity
An astronaunt has landed on a strange new planet and conducts an experiment to determine the acceleration of gravity. She uses a pendulum that has a period of oscillation of 2.84 s on the strange planet and 11.85 s on Earth. What is acceleration of g..
In a certain region of space the electric potential from a given charge distribution can be represented by V= 3x2+2y+6 in units of volts. What is the associated electric field
An AC generator supplies 315 V peak voltage at 260 Hz frequency. How much power is dissipated in a resistor with R = 185 ? resistance connected to the generator
An electron of mass 9.11x10^-31 kg has an initial speed of 3.00x10^5 m/s. Determine the magnitude of the force exerted on the electron
an athlete executes a long jump leaves the ground at an angle of 25 degrees from the ground and lands 5.80m away.a what
Two small plastic spheres, one charged to -25 nC and the other to +25 nC , are connected by a 28-mm-long insulating rod. What is the maximum possible torque on the dipole
A skier of mass m glides down a hill of slope ? at constant speed. If she travels a distance d down the hill, what is the work done by friction
On a swing, a 37 kg girl undergoes small-amplitude oscillations with period 4.1 s. How long are the ropes that support the swing
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