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A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 50.5 m/s and returns the shot with the ball traveling horizontally, What is the impulse delivered to the ball by
Two blocks of weights 77.0 and 114.0 N are connected by as massless string and slide down an inclined plane making an angle of 45.0 deg, find the magnitude of the heavier block's acceleration
A set of crash tests consists of running a test car moving at a speed of 11.8 m/s (26.4 mi/hr) into a solid wall. Calculate the size of the average force which acts on the dummy during that time
A person is 1.4 m tall, and is standing at 2.0 m in front of a plane mirror. What is the minimum length of the mirror if the person is now 3.5 m from the mirror
A single loop of wire of radius 3 cm carries a current of 2.9 A. What is the magnitude of B on the axis of the loop at the following the center of the loop
In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor. What is the magnitude of the impulse acting on the
A ray of sunlight hits a frozen lake at a 43.9° angle of incidence. At what angle of refraction does the ray penetrate the ice
Two forces parallel to the x axis do 16.8 J of work on a small tray while moving it 17.5 m in the x direction across a gym floor. What is the other force
How far below the surface is the insect actually located, How far below the surface is the insect actually located
The splitting of ATP can be schematically given as ATP H2O ?ADP P. what is the equilibrium constant at the temperature
A 2700 kg truck traveling north at 42 km/h turns east and accelerates to 53 km/h. What is the change in the truck's kinetic energy
A thermos contains 170 cm3 of coffee at 85° C. To cool the coffee, you drop two 14-g ice cubes into the thermos. What is the final temperature of the coffee
Ideally, when a thermometer is used to measure the temperature of an object, the temperature of the object itself should not change. What was the temperature of the water before the insertion of the
a hair dryer operates at 1800 watts along with a 240 watt power resistor connected in series. Utilizing a 120 volt source, determine the individual resistance Ri and the voltage drop Vi across each c
A space vehicle is traveling at 4200 km/h relative to the Earth when the exhausted rocket motor is disengaged, What is the speed (km/h) of the command module relative to Earth after the separation
A satellite moves in a circular orbit around the Earth at a speed of 5680 m/s. Determine the period of the satellite's orbit
A 67? resistor, an 9.0?F capacitor, and a 36mH inductor are connected in series in an ac circuit. Calculate the impedance for a source frequency of 300 Hz
Two pipes of the same length are both made to vibrate at their lowest resonant frequency. What is the length of the pipes?
A 69.20-kg free runner jumps off a wall at a velocity of 6.95 m/s at an altitude of 2.37 m above the ground. What is the free runner's kinetic energy when he jumps off the wall
A sinusoidal electromagnetic wave having a magnetic field of amplitude 1.30?T and a wavelength of 434nm is traveling in the +xdirection, What is the amplitude of the associated electric field
A long thin rod lies along the x-axis. One end is at x=2.00 m and the other at x=4.00 m. Calculate mass of the rod
Under controlled darkened conditions in the laboratory, a light receptor cell on the retina of a person's eye can detect a single photon of light of wavelength 503nm, What is the intensity in (W/m^2
An alpha particle (the nucleus of a helium atom) consists of two protons and two neutrons. what is the strength of the magnetic field
In a different car, the distance the dummy moves while being stopped is reduced from 0.750 m to 0.270 m, calculate the average force on the dummy as that car stops
A thin rectangular plate of uniform areal density ? = 2.90 kg/m2 has length of 34.0 cm and width of 24.0 cm. There is a circular hole of radius 6.00 cm with center at (x,y) = (11.00,10.00) cm in the p