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Determine the mass of a 4.6 meter beam, if it is balanced on a fulcrum 2.16 meters from the left end. A 820 N man stands on the very left end, and a 360 N girl stands on the right end. (in kg)
Two children are playing on a balanced seesaw. One child with a mass of 48 kg sits 1.4 m from the center. Where on the other side must the second child sit
Calculate the magnitude, the direction of resultant force and the coefficient of kinetic friction.
The electric field between two square metal plates is 130 N/C. The plates are 1.0 m on a side and are separated by 3.0 cm, Calculate the charge on each plate
A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 40 degree angle from the horizontal, what is the acceleration of the ball at its maximum height? The height of the basket is 3.05 m.
A fireworks rocket is launched vertically upward at 40 m/s. At the peak of its trajectory, When does the second fragment reach the ground
Find out the angular velocity
A homogeneous disk of radius R and mass M rolls without slipping on a horizontal surface and is attracted to a point a distance d below the plane. find the frequency of oscillations around the position of equilibrium
Suppose there are two concentric thin walled conducting spheres, the inner one of radius 10 cm and the outer one of radius 12 cm. If the inner one has a charge of 2.2 C and the outer one has -2.2 C, what is the E field at a point 11 cm from the ce..
A standard 100 W (120 V) lightbulb contains a 9.90cm -long tungsten filament. The high-temperature resistivity of tungsten, What is the diameter of the filament
Find the ranges of this light's frequency. min? max? in Hz, Find the ranges of this light's wave number. min? max? in rad/m
Two positive point charges are a fixed distance apart. The sum of their charges is QT. What charge should each have in order to (a) maximize an electric force between them, and (b) minimize it.
The coefficient of kinetic friction is 0.400. Illustrate what should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?
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