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Question1
A small ball of mass 2x10-3 kg having a charge of 1uC is suspended by string of length 0.8 m. Another identical ball having same charge is kept at a point of suspension. Find out the minimum horizontal velocity that should be imparted to the lower ball so that it can make one complete revolution?
Question2
Two blocks, of mass m1 = 438 g and m2 = 540 g, are connected by a massless cord that is wrapped around a uniform disk of mass M = 466 g and radius R = 10.0 cm. disk can rotate without friction about a fixed horizontal axis through its center; cord cannot slip on the disk. The system is released from rest. Find (a) magnitude of the acceleration of the blocks, (b) tension T1 in the cord at the left and (c) tension T2 in the cord at the right.
A 33.0-mH inductor has a reactance of 2.10 k?. What is the new reactance of the capacitor
a tennis ball is fired from a gun that us mounted on the floor. the tennis ball has an initial speed Vo= 25.0m/s, what is the speed of the tennis ball when it reaches your racket
Find out the acceleration of the crate if the applied force is 380 , the mass of the crate is 32 and the coefficient of kinetic friction is 0.42.
The next three problems refer to two point charges A and B on the x-y plane, Find the x-coordinate of the point on the x-axis where the electric field is zero
It is claimed that if a lead bullet goes fast enough, it can melt completely when it comes to a halt suddenly, Find the minimum speed of a lead bullet
A child looks at his reflection in a spherical Christmas tree ornament 8cm in diameter, and sees his image reduced by half. How long is his face from the ornament.
What is the speed of a wave on a string that has a mass of 9.6 kg and a length of 7.2 m while a 7.0 kg mass is hanging from the end?
A car of mass M = 900kg traveling at 50.0km/hour enters a banked turn covered with ice. What is the radius r of the turn
On a spacecraft two engines fire for a time of 578 s. One gives the craft an acceleration in the x direction of ax = 5.33 m/s2, Calculate the magnitude of the initial velocity
A car completes one lap in a time of 19.3 s, with an average translational speed of 45.2 m/s. What is the radius of the track, and what was the car's average angular speed for that lap
A bullet is fired through a board 10.0 cm thick in such a way that the bullet's line of motion is perpendicular to the face of the board. The initial speed of the bullet is 400 m/s and it emerges from the other side of the board with a speed of 30..
A small piston with area A1 = 45 cm^2 acts in a cylinder to lift a larger piston A2 = 550 cm^2 Find the force on the small piston (F1) if the pressure in the system is 7000 pascals.
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