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A person’s leg segment has a mass of 7.8 kg and a moment of inertia of 0.021 kgm2 about its own center of mass. At one instant during running gait, the center of mass of the leg was located 0.516 m from the hip joint center. What was the moment of inertia of the leg segment about the hip joint?
To measure the static friction coefficient between a 4.33-kg block and a vertical wall, the setup shown in the drawing is used. A spring (spring constant = 461 N/m) is attached to the block.
A person is riding a bicycle, and its wheels have an angular velocity of 18.4 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop, How much time does it take for the bike to come to rest
A bomb at rest at the origin of an xy-coordinate system explodes into three pieces. Just after the explosion, one piece, of mass 2.0 kg, what is the magnitude of the velocity of the third piece
A steel piano wire, of length 0.650 m and mass 5.80 g is stretched under a tension of 460.0 N. What is the speed of transverse waves on the wire
A mixture of ethyl alcohol (molecular mass = 46.1 u) and water (molecular mass = 18.0 u) contains one mole of molecules. What mass m of water does it contain
A charge of +q is located at the origin, while an identical charge is located on the x axis at x = 0.49 m. Where should the third charge be located
A basketball star covers 2.85 m horizontally in a jump to dunk the ball, Determine his horizontal velocity at the instant of takeoff
Two identical pucks are on an air table. Puck A has an initialvelocity of 2.3 m/s in the positivex-direction. Puck B is at rest. Puck A collides elastically with puck B and A moves off at 1.0 m/s at an angle of +60° above thex-axis.
A candle is placed 16.0 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, the image moves 7.5 cm farther away from the mirror. Find out the focal length of the convex mirror.
Calculate the gyrofrequency of an electron in Earth's magnetic field, having a value of ~ 35 A-m-1. Determine the electron density values required to produce a zero refractive index for the case of propagation parllel to Earth's magnetic field at a f..
During a physics experiment, helium gas is cooled to a temperature of 19.0K at a pressure of 6.00×10?2atm. find the rms speed of the atoms
q1. if the proton is released from rest in a uniform electric field does equivalent electric potential at the protons
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