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A 5.1-µC point charge is located at x = 1.1 m, y = 2.8 m, and a -3.9-µC point charge is located at x = 2.3 m, y = -1.9 m.
(a) Find the magnitude and direction of the electric field at x = -2.9 m, y = 1.1 m.
A string is wrapped around a pulley of radius 3.05? , and a weight hangs from the other end. What's the angular acceleration of the pulley
A spherical balloon has a radius of 6.75m and is filled with helium. The density of helium is 0.179 kg/m3, and the density of air is 1.29 kg/m3. Determine the largest mass of cargo the balloon can lift
An arrow is fired with a speed of 20.0 m/s at a block ofStyrofoam resting on a smooth surface. how far into the block does the arrow penetrate
When 2.1 mol of oxygen (O2)gas is heated at constant pressure starting at 0°C, how muchenergy must be added to the gas as heat to quadruple its volume? (The molecules rotate but donot oscillate.)
a gymnast is performing a floor routine. In a tumbling run she spins through the air, How much time does this maneuver take
Solenoids produce magnetic fields that are relatively intense for the amount of current they carry. To make a direct comparison, Find the magnetic field at the center of the solenoid
A Buckyball is a molecule consisting of 60 carbon atoms arranged ina soccer ball like shape. Determine the kinetic energy of the Bucky balls used
Astronauts walking on the Moon are seen "bounding" rather than walking normally. Why?
An Electronic lift can raise a 216 kg mass a distance of 25.7 m in 5.0 seconds. What was the work done by the lift
In addition, the snow exerts a retarding force on the sled that points opposite to direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
Water is pumped into a storage tank from a well delivering 15.0 gallons of water in 34.0 seconds through a pipe of 1.00 in.2 cross-sectional area.
An ice skater rotating 3.85 rad/s with arms extended has a moment of inertia of 2.31 kg*m^2. what is the final angular speed
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