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A lady pulls a suitcase, with a mass of 20 kilogram, across the floor by applying a force T to a chain that makes an angle of 30o, measured from the horizontal. The static coefficient of friction is 0.20, and the kinetic coefficient of friction is 0.10 between the floor and the suit case.
Evaluate what is the magnitude of the applied force T that is needed to start the suitcase moving? And once the suitcase is moving, find its acceleration if the applied force is the same as in the first question?
A child's toy consists of a m = 26 g monkey suspended from a spring of negligible mass and spring constant k. calculate the speed of the monkey in Ve m/s as it passes through equilibrium
You are given a four-wheeled cart of mass 16 kg, where the distance between a wheel and its nearest neighbors is 1.3 m. Find the weight on the nearer wheels of the cart under this load
Star A and B have bolometric magnitudes ma = 5 and mb = 10. If both stars have same absolute magnitude, M, what's the ratio of their distances
Which medical diagnostic methods require using a nuclear reactor or an accelerator?
find the frequency of revolution of the electron in the classical model of the hydrogen atom. in what region of the
A 12,600-kg railroad car travels alone on a level frictionless track with a constant speed of 15.8 m/s. What will be the car's new speed
A 45.0 kg girl is standing on a 162 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. What is her velocity relative to the surface of ice
Suppose the skate boarder shown in problem 38 (cutnell & johnson, 9th ed) reaches a highest point of h=1.8 m above the right side of the semicircular ramp. What is the average frictional force exerted on the skateboarder by the ramp
Two isotopes ofa certain element have binding energies that differ by 14.03 MeV. Find the difference in atomic mass between the two isotopes
In an amusement park ride, cars are suspended from L = 4.20 m cables attached to rotating arms at a distance of D = 6.06 m from the axis of rotation. What is the angular speed of rotation
During WWII some paratroopers landed in gliders instead of dropped by parachute. The gliders had no power of their own, Find the lift force provided by the glider's wings
a particle of mass m is traveling at an initial speed v0 25.0 ms. suddenly a constant force of 15.0 n acts on it
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