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1-a) Does an electrically neutral particle that has mass interact with an electric field? b) Does a charged particle interact with a gravitational field?
2- Can electrical and gravitational fields exist in the same place at the same time?
3- If you know the electric field E at some location, how can you determine the magnitude and direction of the electric force exerted by that field on an object carrying a charge q and placed at that location?
4- A water droplet carrying a positive charge is released from rest in a uniform horizontal electric field near Earth's surface. The horizontal electric force is comparable in magnitude to the gravitational force exerted by the Earth. Describe the droplet's trajectory.
A 15,000 N car on a hydraulic lift rests on a cylinder by a piston of radius 0.20 m. If a connecting cylinder by a piston of 0.04 m radius is driven by compressed air, what force must be applied to this smaller piston in order to lift the car?
An airplane with a speed of 76.6 m/s is climbing upward at an angle of 49.5 ° with respect to the horizontal, Relative to the ground, determine the angle of the velocity vector of the package just before impact
Cliff and Will are carrying a uniform 2.0m board of mass 74kg. Will is supporting the board at the end while cliff is 0.6m from the other end, Find the normal forces exerted by Cliff and Will
The four tires on the author's car are inflated to an absolute pressure of 2.8 multiply.gif 105 Pa.what is the contact area between each tire and the ground
A mortar crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. find How long will the mortar shell remain in the air
a pendulum consists of a mass hanging from a string of length 1.0 mattached to the ceiling. suppose that this pendulum
A parallel-plate capacitor has square plates of edge length 1.1 cm and a plate spacing of 0.09 mm. what is the capacitance
a copper puece of mass 140g and of temperature 240 degree is placed into 360g of water at temperature 25 degree. Find the final equilibruim temperature
A grinding wheel is spinning at a rate of 20.0 revolutions per second. What was the angular acceleration of the grinding wheel as it came to rest
A force of 300 pounds compresses a 10-inch string to a length of 4 inches. Calculate the work done in compressing the spring an additional 2 inches.
A 0.04 kilogram lead bullet traveling 209 meter per second strikes an armor plate and comes to a stop. find what is its temperature change
A particle of mass 0.500 kg is attached to the 100-cm mark of a meterstick of mass 0.200 kg. Calculate the angular momentum of the system
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