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A gas bottle contains a mixture of Helium and Oxygen molecules O2 is diatomic. The root mean square' speed, vrms, for the O2 molecules is 482 m/s. Calculate vrms for the Helium molecules (in m/s). DATA: Mass of O2 molecule = 32 x 1.66·10-27 = 5.31·10-26 kg. Mass of He molecule = 4 x 1.66·10-27 = 6.64·10-27 kg. What is the temperature of the gas (in K)?
Find out the altitude of the plane
A bat flies toward a wall at a speed of5.0m/s. As it flies, the bat emits an ultrasonic sound wave with frequency29.5kHz. What frequency does the bat hear in the reflected wave
what is minimum speed the tranquilizer dart must leave the gun to still hit the monkey.
An astronaut who is repairing the outside of her spaceship accidently pushes away a 98.9-cm-long steel rod, which flies off at 10.5 m/s, never to be seen again. As it happens, the rod is oriented perpendicularly to the magnetic field in that region o..
Two metal rods of equal length-one aluminum, the other stainless steel-are connected in parallel with a temperature of 24.0?C at one end, by what factor does the rate of heat flow change
As a spacecraft approaches a planet, the rocket engines on it are fired (turned on) to slow it down so it will go into orbit around the planet. how long (in minutes) must the engines be fired
A 20 liter tank of helium is at a pressure of 190 kPa at a temperature of 0 C. What is the speed of the helium atoms in the tank at this new volume
A 40.0 kg girl and a 8.4 kg sled are on on ice (frection coefficient 0.01) of a frozen lake, draw free body diagrama for the girl and the sled
A threatening note written on 8.5x11 inch paper is pinned to the door of a physics professor. WHAT is the period of the paper's motion
Two objects of masses 10.0 kg and 5.00 kg are connected by a light string that passes over a frictionless pulley as in figure P4.20. The 5.00 kg object lies on a smooth incline of angle 40 degrees. Find out the acceleration of the 5.00 kg object ..
A circular loop of wire of radius 12.5 cm is placed in a magnetic field directed perpendicular to the plane of the loop, calculate the magnitude of the emf induced in the loop
ou place it in water and it displaces a volume of 20 cubic centimeters of water. What is the hardness of this mineral? describe your answer.
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