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one mole of an ideal gas at 1 atm and 0 C is compressed isothermally from 50 L to 20 L. During the process, energy is transferred out of the gas. What is the change of internal energy for this gas?
Two soccer players start from rest, 43 m apart. They run directly toward each other, both players accelerating. How much time passes before the players collide
Astronomers have discovered a planetary system orbiting the star Upsilon Andromedae, which is at a distance 4.2 1017 m from the earth. what is the minimum necessary aperture diameter that a telescope must have
A two-slit interference experiment is set up, and the fringes are displayed on a screen. How does the fringe pattern change
To the left of the lens is a cube having a face area of 100 cm2. Determine the area of the image
The image of an object placed 30cm from the lens is formed at 20 cm from the lens on the other side. Find the refractive index of the material of the lens.
Stopping a 747 A 747 jetliner lands and begins to slow to a stop as it moves along the runway. find How far has it traveled in this time
A 0.25 m segment of wire lies along the x-axis and carries a current of 4.7 A in the negative x direction. What is the force (magnitude and direction) on the segment of wire
A beam of protons at an accelerator creates a current of 120 mu/A. If the beam is focused on a target, how many protons strike the target in 30.0 s
Helium forms a solid at low temperatures and high pressures. To maintain the order present in a solid, each atom must remain at its assigned position, Find the uncertainty in momentum of the helium atom
A 0.449 kg ice puck, moving east with a speed of 2.91 m/s, has the head-on collision with a 0.846 kg puck initially at rest. Assume a perfectly elastic collision, what will be the speed and direction of each object after the collision.
A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. What must be the horizontal distance between the saddle and limb when the ranch hand makes his move
In a three-slit system, the first minimum occurs at an angular position of 6.00 degrees. Where is the first maximum
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