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Compare the magnitudes of the gravitational force of attraction and the electric force of attraction between the electron and the proton in a hydrogen atom.
a) According to Newtonian mechanics, what is the gravitational force (in Newtons) between a proton and an electron?
b) Using Coulomb's law, what is the electric force (in Newtons) between a proton and an electron?
c) Find the ratio of the electric force to the gravitational force. Which force is stronger?
Calculate the kinetic energy acquired by a 11 kg nail when it is struck by the 530 kg hammer moving with an initial speed of 4.4m/s.
An object falls off of a pier and into the ocean (sea water) where it displaces a total volume of 3.4 cubic meters of sea water. What is the buoyant force acting on the object in newtons
Write down the expression that shows the pressure
Consider a binary separator used to separate aluminum cans from glass. A total mass of 0.8 tonne/hr enters. what is the recovery of aluminum
How does the mass and electric charge of a proton compare with the mass and charge of an electron?
A person with perfect pitch sits on a bus bench listening to the 450 Hz horn of an approaching car. If the person detects the frequency of 470 Hz, how fast is the car moving.
14g of nitrogen gas at 0°C and 1 atm is compressed in an isochoric process to an pressure of 20 atm. How much heat is inputted into the gas
A microwave radio transmitter emits electromagnetic waves of a single wavelength. What is the power of the transmitter
If John Glenn weighed 640N on Earth's surface, i) how much would he have weighed if his Mercury spacecraft had (hypothetically) remained at twice distance from the center of the Earth? ii) Why is it said that an astronaut is never truly weightless..
What is the percent change in momentum of a proton that accelerates from 0.42c to 0.91c?0
A 150? resistor is across a 24.0V battery. Find the energy supplied by the battery in 4min
A Carnot engine operating between energy reservoirs at temperatures 300K \rm K and 530K K produces a power output of 1200W, What is the rate of heat output
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