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In case A, a metal bullet penetrates a wooden block, In case B, a rubber bullet with the same initial speed and mass, bounces off of an identical wooden block. Will the speed of the bullet in case B after the collision be <,> or = of speed just before the collision. explain?
A concave mirror forms an image on a screen twice as large as the object. how far is the object moved
An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. Find the size and the nature of the image
If a metric ton is 1 x10^3 kg, how many 88 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton.
An electron has an initial velocity of 4.9 × 106 m/s in a uniform 1.9 × 105 N/C strength electric field, What is the direction of the electric field
A wire has a length of 6.20 10-2 m and is used to make a circular coil of one turn. obtain the maximum torque that this coil can experience
A dentist's mirror is placed 2.3 cm from a tooth. The enlarged image is located 5.8 cm behind the mirror. How is the image oriented relative to the object
A satilite of mass 5500 kg orbits the Earth and has a period of 6600s. Dertermine the radius of its circular orbit and the altitude of the satelite
In a tube filled with atoms that were excited by an electric current, some of the vibrating atoms move towards the observer while others move away as a result of the particles' random motion, and as a result of the doppler effect, the spectral lin..
Calculate the angular velocity of the wheel when the suitcase reaches the ground. compute the moment of inertia of the wheel.
q. a paratrooper pilot fell 360 m after jumping without his parachute opening. he landed in a snow bank creating a
A projectile is launched from a high plateau so that it just clears a cliff's edge and falls to the valley floor below. How far from the cliff's edge was the projectile launched
A proton accelerates from rest in a uniform electric field of 690 N/C. At one later moment, its speed is 1.30 Mm/s, What is its kinetic energy at the end of this interval
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