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Question: Consider an electron and a proton separated by a distance of 1.0 nm.
(a) What is the magnitude of the gravitational force between them?
(b) What is the magnitude of the electric force between them?
(c) How would the ratio of these gravitational and electric forces change if the distance were increased to 1.0m?
extension cords are often made from 1.0 mm diameter copper wire. a what is the resistance per unit length of this wire?
A sinusoidal electromagnetic wave having a magnetic field of amplitude 1.25\mu {\rm T} and a wavelength of 432{\rm nm} is traveling in the + x direction through empty space. What is the amplitude of the associated electric field
The initial velocity of a car is vi=45km/hr in the positive x-direction. The final velocity of the car, vf is 66km/hr in a direction that points 75 (degrees) above the x-axis. Find the magnitude and direction of the change in velocity
The rms speed of the molecules of a gas at 149°C is 209 m/s. Calculate the mass of a single molecule in the gas
A research group plans to construct an engine that extracts energyfrom the ocean, what is the maximum efficiency such an engine could have
an electron with an initial speed of 790000 ms is brought to rest by an electric field. b what was the potential
A certain sample of gas has a volume of 20.00 dm3 at 0°C and 1.000 atm. A plot of the experimental data of its volume against the Celsius temperature, ?, at constant p, gives a straight line of slope 0.0741 dm3 (°C)?1. From these data alone (without ..
When the plane atats to accelerate for take off, a man is holding the pocket watch steady by its 20cm chain, Estimate the takeoff velocity of the plane
The coefficient of static frictionbetween hard rubber and normal street pavement is about 0.8. On how steep a hill (maximun angle) can you leave a carparked
a particle has a velocity u 0.59c in the labortory. the laboratory is itself moving with velocity v 0.48c relative to
A hoodlum throws a stone vertically downward with an initial speed v0 from the roof of a building, a height h above the ground. How long does it take the stone to reach the ground
Consider again the scenario of, and suppose that instead of three jars, 10 jars are sampled every half hour. Redo with this change.
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