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2.A ball of mass 100g falls from a height of 5m and rebounds to a height of 1.25m.Calculate the impulse and average force between the ball and the ground if the time of contact is 0.1sec.
A small rock moves in water, and the force exerted on it by the water is given by equation f=kv. How high will the rock rise
calculate the wavelengths in air at 20°C for sounds in the maximum range of human hearing, 20 Hz to 20,000 Hz.
The coefficient of linear expansion of a certain solid is 11 × 10^-6/C°. Assuming this solid behaves like most solids, what is its coefficient of volume expansion
Doppler speed meter operating at exactly 1.02 x 10^5 Hz emits sound waves in the direction of anoncoming baseball. The meter detects the reflected sound waves and measures a beat frequency of .30X10
A lens that is "optically perfect" is still limited by diffraction effects. Suppose a lens has a diameter of 130mm, What is the linear width (diameter) of the central maximum at the focal distance of the lens
A charge of +Q is fixed in space. A second charge of +q was first placed at a distance r1 away from +Q. What is the charge in the potential energy of charge
Water flowing through a garden hose of diameter 2.72 cm fills a 22.0-L bucket in 1.60 min. What is the speed of the water leaving the end of the hose
A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top. The string has a length of 72 cm and is wrapped around the top at a place where its radius is 2.3 cm. The thickness of the string is neg..
A thin gold ring of radius 1.02 cm carries a uniform charge per unit length of 1.02e-14 C/m. Find the electric field on the axis of the ring 1.09 cm from the center magnitude.
A 2.00-kg mass object traveling east at 20.0 m/s collides with a 3.00-kg mass object traveling west at 10.0 m/s. How much kinetic energy was lost during the collision
A meter stick is hinged at its lower end and allowed to fall from a vertical postion. iof its moment of inertia is Ml2/3 with what angular velocity does it hit the table
The magnetic field in an electromagnetic wave has a peak value given by B = 2.1uT, Find the peak intensity
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