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A clown at a birthday party has brought along a helium cylinder, with which he intends to fill balloons. When full, each balloon contains 0.00280 m3 of helium at an absolute pressure of 1.20 x 105 Pa. The cylinder contains helium at an absolute pressure of 2.90 x 107 Pa and has a volume of 0.00280 m3.
The temperature of the helium in the tank and in the balloons is the same and remains constant.
What is the maximum number of people who will get a balloon?
A 72 kg meteorite buries itself 5.0 m into soft mud. The force between the meteorite and the mud is given by , What was the speed of the meteorite
A 50 kg block and a 100kg block are connected by string. the pulley is frictionless and of negligible mass. the coefficient of kinetic friction between the 50kg block and incline is 0.250. find the change in the kinetic energy of the 50kg block as..
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A 5.75 kg mass explodes into three pieces. A 2.25 kg piece moves north at 6 m/s; a 1.25 kg piece moves east at 4 m/s. Find the total energy release by the explosion.
A 14 kilogram box slides down a long, frictionless incline of angle 30 degree. Find the original potential energy of the box relative to the ground
Calculate the expression for electric field around and infinite line of charge, which has a line charge density lambda (using Gauss?s Law, cylindrical Gaussian surface). Calculate the magnitude of electric field at a distance of 10 cm from line if th..
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An airplane goes North with an average speed of 100m/s, What is the plane's velocity relative to the ground
A person riding in the back of a pickup truck traveling at 70km/h on a straight, level road throws a ball with a speed of 20km/h relative to the truck in the direction of the truck's motion. What is the velocity of the ball relative to the driver
Using Heisenberg Uncertainty Principle, estimate fastest possible decay lifetime for a nuclear decay with an energy scale 1MeV
On an essentially frictionless, horizontal ice rink, a skatermoving at 2.0 m/s encounters arough patch that reduces her speed by 49% due to a friction force that is 26% of her weight. Use the work—energy theorem to find the length of this rough pa..
The projection lens in a certain slide projector is a single thin lens. A slide 24.9 millimeter high is to be projected therefore that its image fills a screen 1.79 meter high. Evaluate the focal length of the projection lens
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