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How many nitrogen molecules must strike a 1 cm2 surface each second to exert a pressure of 1 atm (Assume that the molecules are all moving at the same speed, at a temperature of 300K, and 45 degree angle to the wall).
A 1348 kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 13.6 s, then the motor stops. The rocket altitude 29.6 s after launch is 2091 m. You can avoid any effects of air resistance. What was the rock..
A rectangular channel n=0.012, 3.05m wide laid on a slope of 0.0049 carries 13.6 m^3/s. The channel is to be contracted to produce critical flow. What width of contracted section will accomplish this, neglecting any loss in the gradual reduction in w..
A 10.0 cm -long solenoid of diameter 0.400 cm is wound uniformly with 800 turns. A second coil with 50.0 turns is wound around the solenoid at its center. What is the mutual inductance of the combination of the two coils?
Theoretical Values for C = 100 microF and R=10 ohm; Resonant Frequency(Linear)= 90 hz, Calculate Resonant Angular Frequency
A cable is 50.0 m long and has a diameter of 2.50cm. A force of 10,000 N is applied to the end of the cable. what is the minimum value of young's modulus allowed
A uniform, spherical cloud of interstellar gas has mass 2.0Ã-1030 kg and radius 9.0Ã-1012 m, what will be the star's rotation period
A satellite orbits a planet of unknown mass in a circle of radius 2.3 x 107 m. The magnitude of the gravitational force on the satellite from the planet is F = 89 N. What is the kinetic energy of the satellite in this orbit
Two friends are carrying a crate of mass 200 kg up a flight of stairs. The crate has length 1.25 m and height 0.500 m, What is the magnitude of the upper person's force
A small object is placed to the left of a convex lens and on it's optical axis. The object is 30 cm from the lens and has a focal length of 12 cm. Describe the nature of this image
An object of mass 5.26 kg is released from rest and drops 1.95 m to the floor. The collision is completely inelastic. How much kinetic energy is lost during the collision
The safe slides with a constant speed if Clyde pushes from behind with 405 N of force while Bonnie pulls forward on a rope with 350 N of force. Illustrate what is the safe's coefficient of kinetic friction on the bank floor?
During an all-night cram session, a student heats up a 0.836 liter (0.836 x 10- 3 m3) glass (Pyrex) beaker of cold coffee. How much coffee (in cubic meters) has spilled out of the beaker
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