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A 70.5kg football player is gliding across very smooth ice at 1.75 m/s. He throws a 0.460 kg football straight forward.
PART A: What is the player's speed afterward if the ball is thrown at 12.5m/s relative to the ground?
PART B: What is the player's speed afterward if the ball is thrown at 12.5m/s relative to the player?
A 45.0 kg person, standing 1.3 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 2.80 m/s relative to the ground. Find out the resulting angular speed of the disk (in rad/s)
Find out the angular velocity
An archer's bow can be treated as a spring with k = 2,900 N/m. what is the work done on the bow as the bowstring is pulled back into position
A speedboat moving at 30 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boat with a constant acceleration of negative 3.5 m/s^2 by reducing the throttle. How long does it take boat to reach the buoy.
A person has a near point of NP = 85 cm and a far point of FP = 210 cm. Write a formula for the power, P1, of the upper portion of the bifocals, in terms of the given quantities, that will enable the person to see distant objects clearly
What is mechanical energy dissipated by resistive forces
Three long parallel wires are 3.8cm from one another. Determine the magnitude and direction of the magnetic field at the midpoint of the side of the triangle between wire M and wire N
A double slit experiment produces 25 highlight spots with total distance y = 21cm, What is the wavelength of the laser source
A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory, What was the ball's launch angle
An ac generator has a frequency of 4.80 kHz and produces a current of 0.0400 A in a series circuit that contains only a 231 resistor, Obtain the voltage of the generator
An elevator and its load have a combined mass of 1450 kg, Find the tension in the supporting cable when the elevator, originally moving downward at 11 m/s
Two point charges -2Q and +3Q are on the x-axis, -2Q at the origin and +3Q at x = D. Find two points on the x-axis within the vicinity of the charges where the electric potential is zero
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