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An elderly person with a body mass of 65 kg is walking while using a cane in one hand. If the upward force that the cane applies to the hand is 117 N and the vertical acceleration of the body center of mass is 1.32 m/s, what is the magnitude of the vertical ground reaction force? (Assume that only one foot is on the ground and the other leg is in the swing phase)
The maximum current in a 26?F capacitor connected to an ac generator with a frequency of 110Hz is 0.15 A. What is the maximum voltage of the generator
Compute an inductance of the sensor for air gaps
A 15 kg box is pulled horizontally by a 20 N force on a frictionless surface. What is the change in kinetic energy of the box
A railroad car of mass 2.52 x10^4 kg, is moving with a speed of 3.94 m/s. It collides and couples with three other coupled railroad cars, each of the equal mass as the single car and moving in the equal direction with an initial speed of 1.97 m/s.
A 6.30 x 10 -5 H solenoid is constructed by wrapping 54 turns of wire around a cylinder with a cross-sectional area of 6.4 x 10-4 m2. find the change in the length of the solenoid
Every year, there is a foot race to the top of the Empire State Building. The vertical distance traveled (using the stairs!) is about 440 m. what was his average power output during the race
An x ray with a wavelength of 0.100 collides with an electron that is initially at rest. What is the final kinetic energy of the electron
A ball on the porch rolls 60 {rm cm} to the porch's edge, drops 40 {rm cm}, continues rolling on the grass, and eventually stops 80 {rm cm} from the porch's edge.
A car starts from rest and moves with an acceleration of 1m/s for 1s. the motor is then turned off and the car is allowed to decelerate, Calculate the total distance traveled by the car
1ml of distilled water is injected into a length of 3mm diametre tubing and sealed at the other end by folding over, Why doesn't water drain out when the tube is hung vertically
A bat hits a moving baseball. If the bat delivers a net eastward impulse of 0.8 N-s and the ball starts with an initial horizontal velocity of 5.0 m/s to the west, what is the mass of the ball
A spring with a spring constant k of 32 N/m is stretched a distance of 22 cm (0.22 m) from its original unstretched position. What is the increase in potential energy of the spring
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