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A) By what factor will the rms speed of gas molecules increase if the temperature is increased from 40 ?C to 150 ?C?
B) What is the rms speed of nitrogen molecules contained in an 7.5m3 volume at 2.3atm if the total amount of nitrogen is 1600mol ?
An archeologist on a dig finds a fragment of an ancient basket woven from grass. Later, What is the age of the basket
In a typical game of squash, two people hit a soft rubber ball at a wall until they are about to drop due to dehydration and exhaustion.
A 3.40 g coin is positioned 16.0 cm from the center of a turntable. The coin has static and kinetic coefficients of friction with the turntable surface of mu_s = 0.720 and mu_k = 0.480. What is maximum angular velocity with which the turntable can sp..
air traffic controllers usually describe the position of an aircraft relative to the airport by altitude, What are the x, y, and z components (in meters) of hte position vector
An observer, whose eyes are 1.99 m above the ground, is standing 35.0 m away from a tree. The ground is level, and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 23.0° above the horizontal. Ho..
A potter's wheel having a radius 0.47 m and a moment of inertia 10.9 kg•m2 is rotating freely at 46 rev/min. The potter can stop the wheel in 7.0 s by pressing a wet rag against the rim and exerting a radically inward force of 68 N. Find out the effe..
The potential at location A is 478 V. A positively charged particle is released there from rest and arrives at location B with a speed vB, Find the potential at B
A 10 g bullet traveling at 430m/s strikes a 11kg , 1.1-m-wide door at the edge opposite the hinge. What is the angular velocity of the door just after impact
A superhero flies 272m from the top of a tall building at an angle of 32 below the horizontal. What is the vertical component of the superhero's displacement.
The Earth has a static electric field almost everywhere on the surface of about 100 V/m, pointed downward, called the "Fair weather field". Calculate the total charge induced on the Earth's surface
A spring with an unstrained length of 0.069 m and a spring constant of 2.7 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring.
A positive point charge Q is on the y axis at y = D; a negative point charge -2Q is at the point x = D, y = D. Find the potential for points on the x axis
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