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A tennis player receives a shot with the ball (0.0600 kilogram) traveling horizontally at 60.0 m/s and returns the shot with the ball traveling horizontally at 32.0 m/s in the opposite direction. (Suppose the initial direction of the ball is in the -x direction.)
(a) Find the impulse delivered to the ball by the racket? (b) Find what work does the racket do on the ball?
A 9 turn coil 1.80 in diameter is rotated at 11 about an axis perpendicular to a uniform magnetic field. A voltmeter connected to the coil through rotating contacts reads a peak value of 340.
You want to throw a pebble at a window located 9.6 m above the ground, making sure that the pebble hits the lowest part of the window with a strictly horizontal velocity. What is the velocity with which the pebble hits the window
A window air-conditioner unit absorbs 9.70×104J of heat per minute from the room being cooled, What is the energy efficiency rating of the unit
A circuit is powered by a 12.0 V battery in series with R1=25 ohms A second set of resistors R2= 75 ohms, What is the voltage drop across the 75 ohm resistor
question an optical disk drive in your computer can spin a disk at up to 10000 rpm. if a particular disk is spun at
A baseball is thrown at an angle of 27 degrees relative to the ground at a speed of 20.9m/s. The ball is caught 36.0231m from the thrower. The acceleration due to gravity is 9.81m/s square. Explain how long is it in the air ?
An ac generator with a frequency of 150Hz and an rms voltage of 22.5V is connected in series with a 15.0kilo ohms resistor and a 0.210microF capacitor. What is the rms current in this circuit?
There is a tree in the middle of your front yard and you take pictures of a squirrell as it runs around the tree. What is the displacement of the squirrell between the rst and second pictures
A sled with a mass of 8.00 kg moves in a straight line on a frictionless horizontal surface. find the force acting on the sled
A ray of light has an angle of incidence of 34.0 ° on a block of quartz and an angle ofrefraction of 17.5°. What is the index of refraction for this block of quartz?
A block of mass M = 7.166 kg is pulled along ahorizontal frictionless surface by a rope of mass m =0.470 kg, as shown in Fig. 5-62. A horizontal force = 36.7 N is applied to one end of the rope. Assume that the rope only sags a negligible amount
Two long, parallel wires separated by 3.00 cm carry currents in opposite directions. The current in one wire is 1.20 A, Is the force attractive or repulsive
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