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Two blocks are free to slide along the frictionless wooden track shown below. The block of mass m1 = 4.94 kg is released from the position shown, at height h = 5.00 m above the flat part of the track. Protruding from its front end is the north pole of a strong magnet, which repels the north pole of an identical magnet embedded in the back end of the block of mass m2 = 9.30 kg, initially at rest. The two blocks never touch. Calculate the maximum height to which m1 rises after the elastic collision.
At the instant a ball rolls off a rooftop it has a horizontal velocity component +12.0m/s of and a vertical component (downward) of 10.0m/s, What is the ball's speed as it leaves the roof
a diverging lens has a focal length of 50 a source of light is placed 100 cm in front of lens in front of the lens. where will the image be formed
A positively charged particle of mass 6.20 multiply.gif 10-8 kg is traveling due east with a speed of 50 m/s, What is the magnitude of the magnetic force acting on the particle
A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s (a) what is its kinetic energy at the end of the 30 s.
A 0.410kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 22.0N/m . The block rests on a frictionless surface. A 6.00×10^2kg wad of putty is thrown horizontally at block, hitting it with a s..
Two parallet wires separated by 7.0 cm repel each other with a force per unit length of 1.5 x 10^-4 N/m. The current in one wire is 3.0 A
You have an uncharged capacitor (12 x 10-6 F) and a resistor (1000 ohms) connected to a battery of 200 V at time t = 0, What is the initial current in the circuit
The bullet penetrates into the block and stops due to its friction with the block. The compound system of the block plus the bullet rises to a height of 11 cm along a circular arc with a 20 cm radius A bullet with a m1 = 30.0 g mass is fired horizont..
A 1.80 m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 14.9 m/s. Calculate the induced emf between the ends of the wire
q1. a man lifts a 22.4 kg bucket from a well and does 6.7 kj of work. the acceleration of gravity is 9.8 ms2.how deep
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, Find the acceleration of the bullet as it passes through the board
A narrow beam of light is incident normally on one face of equiangular glass prism of RI 1.45. Find the refractive index of this liquid and draw a diagram showing the path of rays
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