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A proton accelerates from rest in a uniform electric field of 625 N/C. At one later moment, its speed is 1.25E+06 m/s.
(A) Find the acceleration of the proton.
(B) Over what time interval does the proton reach this speed?
(C) How far does it move in this time interval?
(D) What is its kinetic energy at the end of this interval?
A copper pot sits on a hot plate that is at a remperature of 140 C, How long before one half the pots contents evaporate
A "105-watt" lightbulb uses an average power of 105 W when connected to an rms voltage of 120 V. What is the resistance of the lightbulb
An athlete at the gym holds a 2.5 kg steel ball in his hand. His arm is 70 cm long and has a mass of 4-kg. What is the magnitude of the torque about his muster if he holds his arm straight out to his side, parallel to the floor.
Find the object distances (in terms of f) for a thin converging lens of focal length f if, calculate the magnification of the lens for cases (a) and (b)
An ideal gas is compressed at constant pressure to one-half its initial volume. find the initial volume of the gas
A group of hikers hears an echo 3 s after shouting. If temperature is 16°C, how far away is the mountain that reflected sound wave.
An inclined plane with friction, a massless/frictionless pulley, and two blocks, with m1 hanging and m2 resting on the plane. How do you find the acceleration
For a standard production car, the highest road-tested acceleration ever reported occurred in 1993, Calculate the magnitude of the car's acceleration
Adjacent antinodes of a standing waves on the string are 15.2 cm apart. A particle at an antinode oscillates in simple harmonic motion with amplitude 0.850 cm and period 0.0750 s. The string lies along the x axis and is fixed at x = 0.
A fox locates its prey under the snow by slight sounds rodents make. how long the fox is in the air
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
Assume the bat is a wooden rod of uniform diameter and take the pivot point to be in the middle of the bat, at the end of the bat, Calculate the moment of inertia of a baseball bat
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