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(i) Use the fact that g2=GME/(RE+h)2 at the top of Mount Everest where h is its height, can you explain using some connection between microscopic molecule density and macroscopic air pressure- why we can't boil an egg up there.
(ii) Is there any connection between what was discussed in (i) and buoyancy in air and in water (or in fluid in general)? Explain as best as you can.
Two straight parallel wires carry currents in opposite directions as shown in the figure. One of the wires carries a current of I2 = 10.6 A. Calculate the magnitude of the magnetic field at point A
A cannon ball (m=.7 kg) traveling at 200m/s hits and is impeded into a 400 kg car. If the car was initially at rest, what will be its velocity after the impact
a 281 ball is tied to a string. it is pulled to an angle of 3.6 and released to swing as a pendulum. a student with a
this simulation can be downloaded from granthams website under ph220.simulations its file name is ball on roller cstr
One mole of an ideal diatomic gas is heated from a temperature of 19 degrees C to a temperature of 149 degrees C. How much heat in joules must be supplied if the volume is kept constant during heating?
If electrons are accelerated from rest in an electron gun by sending them through a potential difference of 11.0 kV, what is the resulting kinetic energy of each electron?
A 500g model rocket is on a cart that is rolling to the right at a speed of 3.5m/s. The rocket engine, when it is fired, exerts a 9.0N thrust on the rocket.
When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference. For a typical nerve cell, 9.0 pC of charge flows in a time of 0.50ms . 1. What is the average current? Express your answer to two sig..
A steam engine produces 155 MJ of useful work for every 9 kg of coal. Since coal has a heat of combustion of 31 MJ/kg, what is the minimum temperature of the boiler if the outside temperature is 28oC? Please provide your answer in Kelvin, using K a..
If a measurement of an electron's energy takes 9.6 ns (9.6 × 10?9 s), what is the minimum possible uncertainty in the energy
A 61 kilogram person is in a head-on collision. The car's speed at impact is 16 m/s. Find the net force that ultimately stops the person if she or he is not restrained by a seat belt or air bag
Suppose the distribution of serum cholesterol values in undergraduate men is approximately normally distributed with mean μ = 190 mg/dl and standard deviation σ = 40 mg/dl.a) What is the probability of selecting someone at random from this population..
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