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A charged sphere of mass 3.00E-04 kg is suspended from a string. An electric force acts horizontally on the sphere so that the string makes an angle of 35.0 degrees with the vertical when at rest. Find the magnitude of the electric force (in newtons).
A nonconducting solid sphere of radius 8.40 cm has a uniform volume charge density. The magnitude of the electric field at 16.8 cm from the sphere's center is 2.21 103 N/C.
The electric potential at a position located a distance of 18.6 mm from a positive point charge of 7.50×10-9C and 14.8 mm from a second point charge is 1.10 kV
A girl on a sled coasts down a hill. Her speed is 7.60 m/s when she reaches level ground at the bottom. The coefficient of kinetic friction between sled's runners and the hard, icy snow is 0.04, and the girl and sled together weigh 644N.
A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m from the wall. The ladder weighs 180 N. What is the actual frictional force when the man has climbed 1.0 m along the ladder
Find out a mathematical expression in terms of x, y, and z for the y-component of the force on the particle.
Four objects are situated along the y axis as follows: a 2.01 kg object is at +3.16 m, Where is the center of gravity of this system
An object has a kinetic energy of 313 J and the momentum of magnitude 24.1 kg·m/s. Find out the speed and the mass of the object.
A hare and a tortoise compete in a race over a straight course 2.25 km long. The tortoise crawls at a speed of 0.180 m/s toward the finish line. For how long in time was the hare stationary
Imagine that we connect a formula36.mml lightbulb and an formula37.mml lightbulb in parallel and connect the set to a 19-V battery
An object is placed 2.0 cm from a converging lens with focal length 1.5 cm. Determine the location of the final image
A block of mass 2.50 kg is pushed 2.60 m along a frictionless horizontal table by a constant 14.0 N force directed 25.0ª below the horizontal. Determine the work done by the normal force exerted by the table
What is the required resistance of an immersion heater that will increase the temperature of 0.50 kg of water from 10.0°C to 50.0°C
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