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one mole of hydrogen one mole of nitrogen and one mole if oxygen are held in a 22.4*10^3 cm^3 enclosed vessel at 20C find the pressure in vessel?
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Question: You are standing on a skateboard, initially at rest. A friend throws a very heavy ball towards you. You can either catch the object or deflect the object back towards your friend (such that it moves away from y ...
Question: A projectile is fired from a gun near the surface of Earth. The initial velocity of the projectile has a vertical component of 98 meters per second and a horizontal component of 49 meters per second. How long w ...
A rock takes 2.1 s to hit ground when it is thrown straigh up from a cliff with initial velocity of 7.5 m/s. Calculate height of the cliff in m & length it would take to reach the ground if thrown down with same speed.
Question: A sinusoidal electromagnetic wave having a magnetic field of amplitude 1.25 \mu {\rm T} and a wavelength of 432 {\rm nm} is traveling in the + x direction through empty space. Write the equations for the electr ...
Problem: A jet airplane with a 75.0 m wingspan is flying at 265 m/s. Part (a) What emf is induced between the wing tips in V if the vertical component of the Earth. The response must be typed, single spaced, must be in t ...
Question: A roller coaster car is going over the top of a 12-m-radius circular rise. At the top of the hill, the passengers "feel light," with an apparent weight only 60% of their true weight. How fast is the coaster mov ...
Swimming at 1.50 m/s relative to still water, a swimmer heads directly across a river of width 80 m. He arrives 45.0 m downstream from the point directly across the river from his starting point. (a) What is the speed o ...
If you pick up a 5.7 kg object from the ground and lift it to a height of 0.98 m above the ground in 1.66 seconds, how much power is expended? (Use the value of 9.8 m/s 2 for the acceleration of gravity.) Please provide ...
Question: Your physics textbook is sliding to the right across the table. Part A Identify all forces acting on the object and draw a free-body diagram. Draw the vectors starting at the black dot. The location and orienta ...
Question: Six artificial satellites complete one circular orbit around a space station in the same amount of time. Each satellite has mass m and radius of orbit L. The satellites fire rockets that provide the force neede ...
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