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A .81 kg chunk of ice has a temperature of -30 degrees C. The pressure is one atmosphere. Heat is added to the chunk until it is completely vaporized and the steam is at a temperature of 116.1 degrees C. How much heat was needed for this transformation?
A 240g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.150 s. If the total energy of the system is 3J.
A tennis player tosses a tennis ball straight up and then catches it after 1.61 s at the same height as the point of release. What is the acceleration of the ball while it is in flight
Determine the maximum speed that the car. A boy riding on the back of the truck throws a can of soda upward and catches the projectile at the similar location on the truck bed.
A 1 022-kg satellite orbits the Earth at a constant altitude of 91-km. What is the change in the system's kinetic energy
A 2.00 kg piece of wood slides on the surface shown in the accompanying figure. Where will the wood eventually come to rest? How much work is done by friction by the time the wood stops?
A golf ball of mass 0.045 kg is hit off the tee at a speed of 32m/s . The golf club was in contact with the ball for 3.10×10?3s. Find the impulse imparted to the golf ball
What is the magnitude of the stress in part (a) if only one end of the rod is fixed?
A battery labeled 12.0 V supplies 1.63 A to a 5.5 resistor, What is the terminal voltage of the battery
Describe Erikson, Levinson, cognitive developmental theorists, Kohlberg, behavioral theorists, Bronfenbrenner, Holland, the eclectic theory, and composite theory.
Waves moving on a lake have a speed of 2.3 m/s and a distance of 1.8 m between adjacent crests. Find the period of the wave motion
The electric field everywhere on the surface of a charged sphere of radius 0.180 m has a magnitude of 500 N/C, What is the net charge on the sphere
the concept of thermionic emission is the basis of modern x-ray tubes which are the workhorse of a medical x-ray image.
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