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Forces are vector quantities with units of Newtons (N); 9.8 N of force are required to support 1.0 liter of water near the surface of the Earth. In this question, you eventually have to add three forces acting on a particular object so as to find the total force acting on that object. A large log is located on the icy surface of a frozen pond; for this problem, the ice may be assumed to be a frictionless surface. Three ropes have been attached to the log; three boys are planning to have a sort of tug-of-war by standing on the shore of the pond and pulling on the ropes. The ropes are all horizontal. Ignore the vertical forces on the log, which are the force of gravity on the log by the Earth, and the contact force on the log by the ice. Your job is to add the three horizontal forces to find the total horizontal force acting on the log.
Four point charges are located at the corners of a square measuring 50.0 cm on each side. Three of the charges are -2.00 uC each and the fourth is -5.00 uC, Find the potential energy of the system of four charges
A baseball pitcher throws a fastball at a speed of 45.00m/s. The acceleration occurs as the pitcher holds the ball in his hand and moves it throughout an almost straight-line distance of 4.0 m. compute the acceleration; assume that it is constant ..
A circular coil 17.0 cm in diameter and containing eleven loops lies flat on the ground. Determine the magnitude of the torque on the coil
A block on a 30 degree incline has an initial velocity of 3.5 m/s up the incline. How long until it returns to where it started from
At a recent rock concert, a dB meter registered 130 dB when placed 1.50 m in front of a loudspeaker on the stage. What was the power output of the speaker
If a capacitor has a capacitance of 10 µF and we wish to increase the potential difference across the plates by 50 V, how much charge will we have to add
Two metal conductors that are separated by a distance of 0.89 mm. When an electric spark jumps between them, What is the magnitude of the potential difference
Two stretched cables both experience the same stress. The first cable has a radius of 3.63 multiply.gif 10-3 m, Determine the stretching force acting on the second cable
Find the magnitude of the magnetic flux through the floor of a house that measures 23m by 18m . Assume that the Earth's magnetic field at the location of the house has a horizontal component of 2.4×10^?5T pointing north, and a downward vertical compo..
A cylindrical copper cable carries a current of 1090 A. There is a potential difference of 1.60 10-2 V between two points on the cable that are 0.28 m apart
A force F = ( 2 i + 2 j ) N acts on a particle that undergoes a displacement ?r = (-6 i - j ) m. Find the work done by the force on the particle
A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. What is the angular displacement of the ball while the ball is in the air
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