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A 41.5 g sample of chloroform is condensed from a vapor at 61.6°C to a liquid at 61.6°C. It liberates 9800 J of heat. What is the heat of vaporization of chloroform?
Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. Determine the induced emf within a circle of tissue of radius 1.9 mm and that is perpendicular to the direction of the field
Kinetic energy KE has dimensions kg · m^2/s^2. It can be written in terms of the momentum p and mass m as KE=p^2/2m. (a) Determine the proper units for momentum using dimensional analysis. (Use the following as necessary: kg, m, and s.)
In a certain experiment, the pressure of a gas depends on the volume by P=alphaV^3+betaV^2, What is the work done on the gas
a cart with a mass of 200 kg along a frictionless track. Calculate the velocity of the cart at points A and C is the cart is dropped from a height of 100m with an initial velocity of 10 m/s
A rifle has a mass of 4.5 kg and it fires a bullet of mass 11.6 g at a muzzle speed of 820 m/s. What is the recoil speed of the rifle as the bullet leaves the gun barrel
Objective questions based on force and acceleration.
To get back to the shuttle, the astronaut unstraps a 10-kg tool kit and throws it away with a speed of 8 m/s. In the script, the astronaut, who has a mass of 80 kg without the toolkit, survives, but is this accurate.
Compute the rms speed of a nitrogen molecule at 12.0°C and At what temperature will the rms speed be half that value
What is the direction of the current - by changing the magnetic field - center of a conducting wire loop in a horizontal plane with the north end of the magnet toward the loop.
If the spring stretches by 2.4cm, what is the coefficient of static friction between the backpack and the table.
In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 34.1 m/s in a time of 6.79 s
You close the top of your straw with your thumb and lift the straw out of your glass containing Coke. How large is the error (in per cent) if you neglect the air in the straw
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