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Q1. Three charged particles are placed at corners of an equilateral triangle of side 1.20m. The charges are + 7.0 mc,-8.0 mc and -6.0 mc compute the magnitude and direction of the net force on each due to the other two.
Q2. A ring of mass m and radius r lies on its side on the frictionless table. It is pivoted to the table at its rim. A bug of mass M walks round the ring with speed v, starting at the pivot. What is the rotational velocity of the ring as the bug is half way around?
What is Newtons Version of Keplers Third Law
An aluminium cup of 180 cm3 capacities is totally filled with glycerin at 18° C. How much glycerin (in cubic cm) would spill out of the cup if temperature of both the cup and glycerin is increased to 33° C? (The linear expansion coefficient of alumin..
A 200, 47.0 cm-diameter turntables rotate on frictionless bearings at 70. A 24.0 block sits at the center of the turntable. A compressed spring shoots the block radically outward along the frictionless groove in the surface of turntable.
A trapeze artist swings in simple harmonic motion with a period of 4.2s. The acceleration of gravity is 9.81m/s2. Compute the length of the cables supporting the trapeze.
A boy is attempting to swim directly across a river; he is able to swim at a speed of 0.421 m/s relative to the water. The river is 2.48 m wide and the boy ends up at 4.77 m downstream from his starting point.
The incident electron loses energy The incident electron emits an x-ray.
A student pulls a box of books on a smooth horizontal floor with a force of 100 N in a direction of 37 degrees above the horizontal. If the mass of the box and the books is 40 kg, what is the normal force on box? a. 332 N b. 312 N c. 392 N d. 292 N
Find out the change in entropy of the system
A car carrying a 77-kg test dummy crashed into a wall at 27m/s and is brought to rest in 0.1 s. demonstrate that the average force exerted by the seat belt on the dummy is 18,760N.
The 2.00 kg object below is released from rest at the height of 5.0 m on a curved frictionless ramp. At the foot of the ramp is a spring of force constant k = 450 N/m. The object slides down the ramp and into the spring, compressing it a distance x b..
On another planet the simple pendulum consisting of a 0.154 kg mass suspended on a 1.20 m long string has a period of 3.860 seconds. What is acceleration on this planet.
What is momentum of the block
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