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During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of +3.40 m/s, grabs and holds onto him so that they move off together with a velocity of +1.90 m/s. If the mass of the tackler is 118 kg, determine the mass of the receiver. Assume momentum is conserved.
A heavy sled is being pulled by two people as shown in the figure. The coefficient of static friction between the sled and the ground is ?s = 0.571, what is the sled\'s acceleration
A very long solenoid with a circular cross section and radius r= 6.10 cm with n= 1.20E+4 turns/m has a magnetic energy density uB= 4.50 mJ/m3. What is the current in the solenoid
The leader of a bicycle race is traveling with a constant velocity of +11.2 m/s and is 10.4 m ahead of the second-place cyclist. The second-place cyclist has a velocity of +9.50 m/s and an acceleration of +1.20 m/s2. How much time elapses before h..
Connections to the body for electrocardiography (ECG) and electroencephalography (EEG) are normally made with metal electrodes and conductive gels to ensure good electrical contact. Whats the minimum electrode capacitance
Unpolarized light with an intensity of585W / m2 is incident on a polarizer with an unknown axis. The light then passes through a second polarizer with has an axis which makes an angle of67.0° with the vertical.
Toni has a mass of 43 kg and is moving with a speed of 11.6 m/s. Assume that air resistance is negligible. Find Toni's kinetic energy. Toni's speed changes to 5.8 m/s. Now what is her kinetic energy? What is the ratio of the kinetic energies in parts..
Two charged particles of equal magnitude (+Q and +Q) are fixed at opposite corner of a square lying in a plane. What is the direction of the force on the test charge due to the two other charges
Passengers riding in the Great Six Flags Air Racer are spun around a tall steel tower (see the figure). At top speed the planes fly at a 58.0o bank approximately 12.0 m from the tower. In this position the support chains make an angle of 58.0o with t..
a 0.40kg basketball is thrown horizontally against a board with a velocity of 20m/sec. If the ball rebounds with a speed of 15m/sec. What is the impulse of the ball
q1. an ideal gas is expanded isothermally from 20 l to 30 l. throughout this process 6 j of energy is expended by the
What static friction coefficient would be required between the 2 kg mass and the table to stop the masses from accelerating
A rear wheel on a Formula 1 racing car has a mass of 3.2 kg and a radius of 0.42m. A mechanic is rolling the wheel towards a step at the back of the workshop. Decide: The minimum horizontal force (F) needed to be applied through the axle (center) of ..
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