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The weight of a metal piece is measured using a spring balance . Spring balance shows 14.5N when metal piece hanging in the air. When we lower it down into the water , the spring balance is 6.2N . Calculate the mass density of the metal?
A test rocket is launched, starting on the ground, from rest, by accelerating it along an incline with constant acceleration "a", what is the position vector when the rocket is at its highest point
Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 1.13 m. What is the magnitude of the initial acceleration of the third sphere
q1. three identical train cars coupled together are rolling east at 1.2 ms. a fourth car travelling east at 4.4 ms
It creates intuitive sense that micro-states of higher energy occur with a lower probability and the exponential function has reasonable properties. But can a physical explanation be given to why the energy's are distributed according to an exponenti..
When you push a 1.77 kg book resting on a tabletop, it takes 2.29 N to start the book sliding. Once it is sliding, but, it only takes 1.45 N to keep the book moving with a constant speed. What is the coefficient of static friction among the book and ..
If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find out the final speed of the truck.
Cheetahs, fastest of the great cats, can reach 45 in 2 starting from rest. Assume that they have constant acceleration throughout that time, find their acceleration (in (a) and (b) ) and the distance (in (c) and (d) ) Q2. They travel during that t..
a real object is located at the zero end of a meter stick. a large concave mirror at the 100 cm end of the meter stick
Two 9.00 µC charged particles are located on the x axis. One is at x = 1.00 m, and the other is at x = -1.00 m, Determine the electric field on the y axis at y = 0.500 m
A lead ball is dropped into a lake from a diving board 5.6 above the water. After entering the water, it sinks to the bottom with a constant velocity equal to velocity with which it hit the water. The ball reaches the bottom 5 after it is released..
A box weighing 77.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Determine the force that the table exert on the box if the weight hanging on the other side of the pulley ..
A high-speed lifting mechanism supports a 790-kg object with a steel cable that is 32.0 m long and 4.00 cm2 in cross-sectional area. Determine the elongation of the cable
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