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A ball of weight Q and radius r is attached by a string AD to a vertical wall AB, as shownin Fig. Determine the tensile force S in the string and the reaction Rb against the wall atB if Q = 90 N, r = 75 mm, AB = 100 mm. Neglect friction at wall.
A 0.04 kilogram lead bullet traveling 209 meter per second strikes an armor plate and comes to a stop. find what is its temperature change
a copper rod is sliding on two conducting rails that make an angle of 19deg with respect to each other as in the
At the bottom of its path, the ball strikes a 3.80 kg steel block initially at rest on a frictionless surface. The collision is elastic. Find out the speed of the ball just after the collision ?
An 8.0 kg crate is pulled 5.4 meter up a 30 degree incline by a rope angled 18 degree above the incline. Compute the increase in thermal energy of the incline and crate
An apple weighs 1.01 . When you hang it from the end of a long spring of force constant 1.56 and negligible mass, it bounces up and down in SHM, What is the unstretched length of the spring
Using 340 m/s for the speed of sound in air, calculate the fundamental frequency for a 5 m organ pipe with the following characteristics
What is the maximum speed with which a 1060kg car can round a turn of radius 75m on a flat road if the coefficient of static friction between tires and road is 0.80.
q1. a potters wheel moves from rest to an angular speed of 0.14 revs in 24 s.what is the angular acceleration?response
Two pieces of the same metal, however of different mass and at different initial temperature, come in thermal contact. When the two pieces reach thermal equilibrium, which one will have greater temperature change? Assume that the two pieces form a cl..
Two steel wires are stretched with the same tension. the first wire has a diameter of 0.610mm and the second wire has a diameter of 0.910mm. If the speed of waves travelling a long the first wire is 54.0m/s what is the speed of waves traveling a long..
Oppositely charged parallel plates are separated by 4.52 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates?
The weight of a 1200 kgcar is supported equally by the four tires, which are inflated to the same gauge pressure. What gauge pressure is required
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