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The escape speed from the Earth is 1.12×10^4m/s, so that a gas molecule travelling away from Earth near the outer boundary of the Earth's atmosphere would, at this speed, be able to escape from the Earth's gravitational field and be lost to the atmosphere.
Part A: At what temperature is the average speed of oxygen molecules equal to 1.12×10^4 m/s?
Part B: At what temperature is the average speed of helium atoms equal to 1.12×10^4 m/s?
A horizontal tube with length L has two positive charges +Q1 and +Q2 on the edges. A small ball can move without friction inside the tube (see figure). This small ball has a charge +Q and the same diameter as the tube. Find the static equilibrium ..
A 110kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 350N. For the first 15.00 m the floor is frictionless and for next 15 m the coefficient of friction is 0.30. What is the final speed of the crate.
Two trains (1 and 2), each having a speed u are initially (i.e. t = 0) a distance d apart and are headed towards each other on the same track. Calculate the time at which the trains crash
A spaceship needs to change its course thus that the magnitude of its momentum p remains the same but the direction changes by the angle α. Obtain the minimum time for which the engines must be turned on
Make a table with the following five columns: semiconductor type, wafer diameter, wafer cost, cost per cm?, and a citation for your data. Why is silicon a popular semiconductor for manufacturing?
What is Seth’s angular position at = 3.2 measured counterclockwise from the top? Give your answer as an angle in degrees between 0 and 360 degrees.
Find the current proper distance, comoving distance, luminosity distance, an angular diameter distance to a galaxy at redshift z. Find the horizon distance.
the speed of light in water is 2.25 x 108 ms. using einsteins thinking explain whether it is possible for a particle to
A high diver of mass 70kg jumps off a board 10 meters above the water. what average upward force did the water exert on the on the diver
A magnetic dipole with a dipole moment of magnitude 0.0205 J/T isreleased from rest in a uniform magnetic field of magnitude 56.3mT. The rotation of the dipole due to the magnetic force on it is unimpeded.
Two forces one of which is double to the other has resultant of 260 N.- Determine the magnitude of the two forces and the angle between them?
A car moving along a staight road uniformly slows down to a speed of (5 + 0.4x) m/s in 10 seconds. During this time the car travels (150 +x) m. What is the acceleration
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