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A point charge is accelerated from rest through a potential difference of 150 V and gains a speed v initial.
1. What speed (in terms of v initial ) would it gain if it were accelerated through 280 V instead?
2. Through what potential difference should it be accelerated if we want its final speed to be 3.00 vv initial?
Calculate the hydrostatic difference in blood pressure between the brain and the foot in a person of height 1.58 m
What horizontal force acts on the puck after the push
Jane is standing on the platform waiting for the train. The train approaching the platform from the north at 20 m/s blows its whistle when it is 100 m away from Jane. What frequency of sound does Jane hear
An aluminum rod is 17.0 cm long at 20°C and has a mass of 350 g. what is the change in length of the rod
A turbine that uses steam drives an electric generator. The inlet stream flows through a 10 cm diameter pipe to the turbine at 2.5 kg/s at 600°C and 1000 kPa. The exit steam discharges through at 25 cm diameter pipe at 400°C
How do you measure the mass of an astronaut in orbit? (You can't just use a scale!) For the Skylab program, What is the mass of the astronaut
Explain how much work is used to raise A to height h? What happens to the kinetic energy of B if its speed is doubled?
A 7.0 kg box is raised from rest a distance of 3.0 m by a vertical force of 110 N. What is the total work done on the block when the block slides 1.4 m (measured along the incline)
How much energy is lost through your hands in one minute after touching on a cold surface at 10 C compared to being exposed to cold air at 10 C
When the afternoon Sun reaches an angle of 30° above the horizon, sunlight ceases to clarify any part of the bottom of the tank. How deep is the tank.
A potter's wheel, with rotational inertia 6.50 , is spinning freely at 16.0 . What is the subsequent angular speed of the wheel
0.97 L of 16C water is placed in a refrigerator. What is the refrigerator's coefficient of performance
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