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Problem:
A spring of constant k = 100 N/m hangs at its natural length from a fixed stand. A mass of 3 kg is hung on the end of the spring, and slowly let down until the spring and mass hang at their new equilibrium position.
The spring is now pulled down an additional distance x and released from rest. What is the potential energy in the spring at this distance?
Consider a 3 kilogram copper cube and a 3 kilogram copper ball submerged in a liquid. Find the buoyant forces acting on these two bodies be the same or different
A balloon with a radius of 14cm and an electric charge of 3.75x10^-9 C is brought within the electric field of the larger balloon so their centres are 40cm apart. find the magnitude of the electric force exerted by this electric field on the small..
A crane of mass mc = 3400 kg supports a load of ml = 11300 kg as in Figure. The crane is pivoted with a frictionless pin at A and rests against a smooth support at B. Find the reaction forces at A and B.
To determine the Young's Modulus of a steel wire. To use a strain gauge to measure the strain produced when a weight is hung from a plastic strap
Two identical point charges of q = +1.50 x 10-8 C are separated by a distance of 0.30 m. How much work is done by the electric field force to move
α particles of energy 5MeV pass through an ionization chamber at the rate of 10 per second. Assuming all the energy is used in producing ion pairs, calculate the current produced.(35 eV is required for producing an ion pair)
The reason of a banked curve is to allow vehicles tomaneuver during the turn without relying on static tire friction to remain on the curve. An accident investigator is trying to decide whether or not a highway clover leaf on-ramp speed limit sign is..
A single force acts on a particle-like object of mass m kg in such a way that the position of the object as a function of time is given by x = 3t - 4t2 + t3, with x in meters and t in seconds. Find the work done on the object by the force between ..
A 67.3 kg sled starts at rest on a horizontal road. The coefficient of kinetic friction between the sled and the road is μk = 0.202. A man pulls the sled a distance 5.07 m along the ground by exerting a constant force of magnitude 532 N on a rope tha..
An electron that has velocity = (3.1 106 m/s) + (2.3 106 m/s) moves through a magnetic field = (0.03 T) - (0.15 T) . (a) Find the force on the electron. N (b) Repeat your calculation for a proton having the same velocity. N
Two horses leave the starting the beginning of a 2000 m long race. which horse wins the race
The particle's speed is 150 m/s, the magnitude of the magnetic field is 0.52 T, and the radius of the path is 960 m. Determine the mass of the particle
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