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a) A stationary proton is accelerated through a potential difference of 2.5 kiloVolts. Find its subsequent velocity in m/s.
b) The proton is next sent through 2 oppositely charged parallel metallic plates having a potential difference of 250 V. Find the absolute value of the B field that must be applied perpendicular to the plates to keep the proton on a straight line as it passes through the plates.
In a test laboratory, an electric engine is used to accelerate a wheel from rest. what is the average power output of the engine
A 1000 kg experimental rocket sled on a level frictionless rail is loaded wiht 50kg of propellant. It exhausts the propellant in a 20-s "burn". If rocket, initially at rest, moves at 150m/s after the burn, what impulse is experienced by the rocket..
What is the direction of the object's acceleration after it is free. What is the magnitude of the objects acceleration.
Though sunlight varies with season and time of day, solar energy falls on United States at an average intensity of 200. Assuming you live in an average location, what total solar-cell area would you need to provide all of your energy needs with en..
A heating element in a stove is designed to dissipate 3200 W of heat when it is connected to 245 V. Assuming that the resistance is constant, calculate the current in this element if it is connected to 115 V.
Determine how much force is exerted on one side of an 8.50 centimeter by 11 centimeter sheet of paper by the atmosphere
An aluminum cube 10 cm on a side is subject to shear stress. A force of 40,000 N acts on each of four faces. Calculate the shear strain
A resistance is connected to a AC source with an rms output of 12 V and a frequency of 60 Hz, the rms current is found to be 2.4 A. When a capacitor is connected in series in this circuit the current drops to 1.4 A. What are the value of the resis..
An electron that has velocity = (3.1 106 m/s) + (2.3 106 m/s) moves through a magnetic field = (0.03 T) - (0.15 T) . (a) Find the force on the electron. N (b) Repeat your calculation for a proton having the same velocity. N
A block of ice slides 500 m down along a frictionless slope (slopes 20 degrees below horizontal). what is blocks speed at end of slop
An object starts from the origin and goes along the x-axis to x = 10 m in 2 s, stops for 5.5 s, and then travels at v = -4 m/s for 2.5 s
A log splitter uses a pump with hydraulic oil to push a piston, which is attached to a chisel. find the power needed to operate the log splitter's pump
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