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An experimenter adds 970 J of heat to 1.75 mol of an ideal gas to heat it from 10.0C to 25.0C at a constant pressure. The gas does +223 J of work during the expansion.
A) Calculate the change in internal energy of the gas
Two spaceships approach each other, each moving with the same speed as measured by an observer on the Earth. find the speed of each spaceship as measured on Earth
A star is 4.94 × 1020 m from the Earth. If this star was to burn out today, how many years would it take before we would see it disappear
A wire of length L is wound into a square coil with 127 turns and used in a generator that operates at 60.0 Hz, What is the length Lof the wire used to construct the coil
We are not normally aware of the gravitational or electric force between two ordinary objects. What is the reason in each case? Give an example where we are aware of each one and why.
On an old-fashioned rotating piano stool, a woman sits holding a pair of dumbbells at a distance of 0.605m from the axis of rotation of the stool. What is the initial angular momentum of the system
A fish uses an internal organ known as a swim bladder to change itsdensity so that it is equal to that of water, enabling it to remainsuspended under water
A toroid having a rectangular cross section (a = 2.00 cm by b = 3.00 cm) and inner radius R = 3.80 cm consists of 500 turns of wire that carries a sinusoidal current I = Imax sin ?t, find the emf induced in the coil as a function of time
The resistance of a copper wire is 0.8? at 20 DC. When it is placed in an oven, its resistance is 1.2?. What is the temperature of the oven
An ion harvester is scouring deep space for isolated xenon (Xe+) ions. A xenon ion is singly ionized, and has a charge of +e. how far away is it from the ion
A rock falls off the back bumper of a truck which is traveling at 26.8 m/s. The rock hits the ground 0.387 seconds after it leaves the bumper. How high above the road is the trucks bumper
A train 400m long is moving on a straight track with a speedof 82.4 km/h. determine how long the train blocked the crossing
A fox fleeing from a hunter encounters a 0.795 m tall fence and attempts to jump it. By how much does the fox clear the fence
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