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A rubber ball is held 4.0 m above a concave spherical mirror with a radius of curvature of 1.5 m. At time equals zero, the ball is dropped from rest and falls along the principal axis of the mirror. How much time elapses before the ball and its image are at the same location?
A technician wearing a circular metal band on his wrist moves his hand (from a region where the magnetic field is zero) into a uniform magnetic field of magnitude 2.0 T in a time of 0.30 s. find the magnitude of the average emf induced in the band
two coconuts fall from rest at the same time one from a tree twice as high as the other.1-if the coconut from the
water is flowing in a horizontal pipe of variable cross section. Where the cross-sectional area is 1.80x10^-2 m^2, What is the PRESSURE and VELOCITY
A traveler in a rocket of proper length 2d sets up a coordinate system S' with its origin O' anchored at the exact middle of the rocket and the x' axis along the rocket's length. At time t' = 0 she ignites a flashbulb at O'.
explain why eigenstates for a particle in a box cannot represent free particles even if the dimensions are allowed to
A characteristic momentum for a particle in an ideal gas canbe found by the relationp2/(2m)=(3/2)kT wherek is Boltzmann's constant. k=1.38x10-23J/K. what is the characteristic momentum
A 5.50 grams coin is placed 14 centimeter from the center of a turntable. Find the maximum angular velocity with which the turntable can spin without the coin sliding
A construction worker is standing in a 2.6 meter deep hole, 3.1 meter from the side of the hole. He tosses a hammer to a companion outside the hole. Find how far from the edge of the hole does it land
A sphere has radius R1 and uniform volume charge density ρ. A spherical cavity with radius R2 is carved out at an arbitrary loca- tion inside the larger sphere. Show that the electric field inside the cavity is uniform (in both magnitude and dir..
When a Newton's ring apparatus is immersed in a liquid, thediameter of the eighth dark ring decreases from 2.92 cm to2.48cm. What is the refractive index of the liquid
A rocket accelerates upwards from rest at 20 m/for 4 seconds then its engine shuts off. find the maximum height reached by the rocket
person leaning over a 124 m deep well accidentally drops a siren emitting sound of frequency 2430 hz. What beat frequency does this person perceive
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