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A sealed jar contains only air at room temperature and atmospheric pressure. To what temperature should the air be heated in order for its pressure to double? Give a number, and include units.
Starting from rest, two skaters "push off" against each other on smooth level ice, where friction is negligible. One is a man and one is a woman. obtain the recoil velocity of the man relative to ice
A 42.0 kg block of ice slides down a plane with an incline of 34°. Assuming friction is neglecting, what is the acceleration of the block down the incline?
If the same fish is attached to the end of the unstretched spring and then allowed to fall from rest, elucidate through what maximum distance does it stretch the spring?
An electron moving to the right at 0.900c collides with a positron moving to the left at 0.900c. What is the wavelength of the protons
This is a conceptual question, The fundamental source of asound wave is a vibrating object, what is the fundamental source of an electromagnetic wave
Two cylinders, made from the same material and having the same length, have radii r1 and r2 with r1 > r2. Find the final angular velocity of the smaller cylinder
A car goes from 40 m/s to 80 m/s in a distance of 200 meter. Determine what is its average acceleration
A lunch tray is being held in one hand, as the figure illustrates. The mass of the tray itself is 0.247 kg, and itscenter of gravity is located at its geometrical center. On the trayis a 1.01-kg plate of food and a 0.254-kg cup of coffee.
A long horizontal hose of diameter 3.2 cm is connected to a faucet. At the other end, there is a nozzle of diameter 1 cm. What is the velocity of the water in the hose
The windings of a motor have a resistance of 4.0 O. The counter emf of this motor when connected to a 120-V line and running at full speed is 104 V. What is the start up current of this motor
A 45-kg crate is placed on an inclined ramp. When the angle the ramp makes with the horizontal is increased to 25 degrees , At what angle does the crate begin to slide
Using a vernier caliper of least count 0.01 cm, the length of a cylinder is measured to be 3.76 cm, Calculate the probable percent error in the length
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