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You observe that a solid cube of some material floats on the surface of an oil puddle at a service station with 75.9% of its volume submerged. The density of the oil is 901 kg/m3. What is the density of the cube\'s material?
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1360 Hz. The bird-watcher, however, hears a frequency of 1430 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
Two charges are separated by a distance d and exert mutual attractive forces F on each other. If the charges are separated by a distance of d/3, what are the new mutual forces? q1 = +2C and q2 = -2C
The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base.
Portray how asynchronous simulation can be used to predict the motions of this system and outline the data structures that would be necessary to implement such a program.
One-half mole of a monatomic ideal gas expands adiabatically and does 520 J of work. Specify whether the change is an increase or a decrease
A 1000kg car coasting at 72.0km/h on a level frictionless road comes to a 15 degree incline. Calculate how far the car will travel before coming to rest
A ball is rolling down a ramp. When it passes a particular point, you determine that the ball is traveling at an angular speed of 12.0 rad/s, Determine the magnitude of the balls angular acceleration
An interferometer can be used to measure very small distances, much like a caliper but with a far greater precision. How far did the movable arm of the interferometer travel
Suppose a 0.3 kg mass on a spring tha has been compressed 0.10m has elastic potential energy of 1 J. What is the spring constant? Also, how much further must the spring be compressed to triple the elastic potential energy
An accelerating voltage of 2.65 multiply.gif 103 V is applied to an electron gun, What is the magnitude of the deflection on the screen caused by the Earth's gravitational field
A 12.0 kg box on a horizontal surface is pushed with an initial speed of 1.6 m/s. It has a friction force of 20N how many seconds will it take for the box to come to a stop
the man and the platform together weigh 1200 N. The pulley can be modeled as frictionless. Elucidate how hard the man has to pull on the rope to lift himself steadily upward above the ground.
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