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A parcel of gas expands as it ascends upward away from the ground. This process reduces the parcel’s internal energy by 6500 J. How much work is done on the external environment through this process? (This process is an adiabatic process).
An archeologist on a dig finds a fragment of an ancient basket woven from grass. Later, What is the age of the basket
Snow is falling vertically at a constant speed of 5.0 m/s. At what angle from the vertical do the snowflakes appear to be falling as viewed with the driver of a car traveling on a straight, level road by a speed of 20 km/h?
An electron moves with a speed of 8.0 × 10^6 m/s along the +-axis. It enters a region where there is a magnetic field of 2.5 T, Calculate the magnitude of the magnetic force on the electron
A proton by initial velocity components v(x) = 1.30 x 10^6 m/s, v(y) = 0, v(z) = 2.10 x10^4 m/s is placed in a constant and uniform magnetic field in the positive z-direction by magnitude 0.600 T. The proton subsequently travels in a helical trajecto..
A single loop of wire with an area of 0.0900 m2 is in a uniform magnetic field that has an initial value of 3.80 T, is vertical to the plane of the loop, and is decreasing at a constant rate of 0.190 T/s.
A 512 kg satellite is in a circular orbit about the Earth at a height above the Earth equal to the Earth's mean radius.
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 8.76 m and, in starting, rotates according to Theta = 0.30 t 2. what is the magnitude of the astronaut's linear speed
We want to launch the package in such a way that it will never come back, and when it is very far from the asteroid it will be traveling with speed 187 m/s. We have a large and powerful spring whose stiffness is 3.0 105 N/m. Explain how much mus..
A particular radioactive source produces 125 mrad of 1 MeVgamma rays per hour at a distance of 1.0 m. How long could a person stand at thisdistance before accumulating an intolerable dose of 1 rem
What is the rate of change entropy of the first reservoir.
A boy pulls a 20 kilogram box with a 50 Newton force at 37 degree above the horizontal surface. Determine the work done by the frictional force
Describe how Newton's three laws of motion involved in the process of lifting a weight using the high pulley. Consider, too, what would happen if the floor and seat where completely smooth. Is this a process in which momentum and energy are conserved..
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