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Energy is transferred to a block of wood by a force at a rate given by:
P(t)= (10.0 Watts)cos[(0.150s-1)t] + (0.50 Watts/s)t for 0.00 < t < 3.00s
Compute the maximum power delivered to the block and when it occurs.
Two balls with masses of 2.0 kg and 6.0 kg travel toward each other at speeds of 12 m/s and 4.0 m/s, respectively. how much kinetic energy is lost in the collision
A spring lies on a horizontal table, and the left end of the spring is attached to a wall. How far can the spring be stretched from its unstrained position
A 3.34 bullet moving at 280 enters and stops in an initially stationary 3.40 wooden block on a horizontal frictionless surface. How much work was done in stopping the bullet
Suppose 1.00kg of water at 100 degrees Celsius is mixed with 1.00kg of water at 0 degrees Celsius. What is the total charge in entropy of the mixture
Two identical cars (m = 1350 kg) are traveling at the same speed of 28.0 m/s. estimate the magnitude of the total momentum of the two cars
A 51.0cm -long solenoid 1.35 cm in diameter is to produce a field of 0.335mT at its center. How much current should the solenoid carry
A ping-pong ball has been electrostatically charged such that it has 2.5 x 1015 excess electrons. The ball has a massof 1.0 g. It is observed to float motionless in the presence of auniform electric field. What is the magnitude and direction of th..
If 1800J of heat are added to a 190-g object, its temperature increases by 10o C. What is the heat capacity of this object
A copper ball with a diameter of 5.00 cm is subjected to a pressure of 2.50 × 106 Pa. The bulk modulus for copper is 14.00 × 1010 N/m2. What is the change in the volume?
A ball is kicked with initial velocity of 14.9 m/s in the horizontal direction and 15.7 in the vertical direction. At what speed does the ball hit the ground
Tsunamis are fast-moving waves generated by underwater earthquakes.In the deep ocean their amplitude is barely noticeable, What was the speed (in m/s) of the wave
q1. a typical major league fastball is thrown at about 99 mph and with a spin rate of 103 rpm. if the distance between
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