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Q. A boulder has 300 J of potential energy sitting on the edge of a cliff. What is the boulder's kinetic energy as it hits the ground?
Q. A ray of light traveling in air strikes the mid- point of one face of an equiangular glass prism (n = 1.37) at an angle of exactly 30.0. Trace the path of the light ray through the glass and find the angle of incidence of the ray at the bottom of the prism.
A person is making homemade ice cream. She exerts a force of magnitude 22 N on the free end of the crank handle, and this end moves in a circular path of radius 0.28 m. The force is always applied parallel to the motion of the handle. If the handl..
A pencil (mass 5.8g and length 8.3cm) is at first balanced so that it is sitting vertically on a flat table. If the pencil then falls, find its angular velocity just before it strikes the tabletop. Assume that the mass of the pencil is distributed un..
An airplane flies due west at a velocity of 645 kilometres per hour (km/h). The wind blows from the north at a velocity of 125 kilometres per hour (km/h). Find the plane resultant velocity?
Calculate the vertical component of its velocity by the time it hits the ground
Compute the momentum of the bullet
At one instant a bicyclist is 35.0m due east of a park's flagpole, going due south with a speed of 20 m/s. Then, 19 s later, the cyclist is 60.0 m due north of the flagpole, going due east with the speed of 11 m/s. For the cyclist in this 19s inte..
Gold, which has a density of 19.3 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber.
With the power supply disconnected, the dielectric material is removed and the potential difference between the plates is measured to be 500 V. What is the dielectric constant of the material that was at first used to fill the gap between the plates.
What is the angular acceleration
What is amplitude of the electric component of the signal
What is least amount of work required by an external force
A spotlight is coated so that it won't transmit magenta light from its white-hot filament. What colour emerges from coated spotlight.
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