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Two parallel plates 0.600cm apart are equally and oppositely charged. An electron is released from rest at the surface of the negative plate and simultaneously a proton is released from rest at the surface of the positive plate. How far from the negative plate is the point at which the electron and proton pass each other?
What is x and y coordinates of the shell
A vertical spring (spring constant = 119 N/m) is mounted on the floor. A 0.390 kg block is placed on top of the spring and pushed down to start it oscillating in simple harmonic motion. The block is not attached to spring.
An 85.1 kg base runner begins his slide into second base while moving at a speed of 5.9 m/s. The coefficient of kinetic friction between his clothes and ground is 0.68. He slides so that he comes to rest just as he reaches the base.
What are the forces acting on the board due to the two supports as a diver of mass 63 kg stands at the end of the board over the water.
An iron tower in is 399 meters tall on a cold day (T = -6.7 degrees Celsius). What is its height of the tower on a hot day while the temperature is 31.5 degrees Celsius.
The electric field lines on the left have twice the separation of those on the right. If the magnitude of field at point-A is 60 V/m, what is the magnitude of the field at point-B.
A 1000 kg experimental rocket sled on a level frictionless rail is loaded wiht 50kg of propellant. It exhausts the propellant in a 20-s "burn". If rocket, initially at rest, moves at 150m/s after the burn, what impulse is experienced by the rocket..
A freezer is comprised of 1.80x1x0.5 m^3 volume, insulated with 5 cm thick Styrofoam. (1) At what rate should the compressor remove heat to maintain the inside at - 20 degrees Celsius with the outside at room temperature. (2) What is the R-value o..
A town is installing a new 10” main to carry drinking water. The only section remaining to be installed is a segment through the middle of town. Calculate the length of pipe required for the pipe system.
Two doors of the same unknown dimension lay inline and parallel horizontally to one another (Example: As viewed from above in an architectural drawing.
100.0 W tungsten filament bulb generates 95.0 W of heat, which dissipated through glass bulb which has radius of 3.00 cm and 0.500 mm thick. If thermal conductivity of glass is 0.836 W/m°C, determine difference in temp. between inner and outer sur..
A force does +130J of work while it acts on a moving object and its direction is in the same direction as the object's displacement. How much work does this force do as the angle between it and the object's displacement is 56°.
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