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When 3825 J of heat are added to a 0.14-m-long silver bar, its length increases by 4.59 10-3 m. What is the mass of the bar?
a cylinder contains 4.0moles of a monoatomic gas at an initial temp of 27deg C. How much heat flows in to our out of the gas
Two metal rods of equal length-one aluminum, the other stainless steel-are connected in parallel with a temperature of 24.0?C at one end, by what factor does the rate of heat flow change
In a court hearing, a physicist reconstructs an accident in the following way. A sports car of mass m1=1000kg collided with a parked truck of mass m2=1500kg. Determine the speed of the sports car immediately after the collision
The 9 inch long elephant nose fish in the Congo River generates a weak electric field around its body using an organ in its tail. How many electrons would be required to create that charge
An 8.8 mH inductor is connected to an ac generator (10.0 V rms, 600 Hz). Determine the peak value of the current supplied by the generator
A wheel has a radius of 0.5 m. If the wheel rotates on its axis through an angel of 46 degrees, what distance does a point on the rim of the wheel move
On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s, What are the magnitude and direction of the velocity of the red glider after the collision
A 5 L rigid (constant volume) container holds 0.60 moles of helium at an initial temperature of 80 oC, How many moles of gas will be in the container at the final temperature
The distance between the lenses in a compound microscope is 18 cm. The focal length of the objective is 1.5 cm. what must be the focal length of the eyepiece
What is total distance the bird travels by trains collide
What is the magnitude of the average force required to stop 1200kg car in 9.0 if the car is traveling at 65km/h
The electric motor of a model train accelerates the train from rest to 0.720 m/s in 27.0 ms. Find the average power delivered to the train during its acceleration
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