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Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of the orbit is 4.41 × 10-11 m. Determine the magnitude of the electron's centripetal acceleration.
What is the childs total mechanical energy. If the speed of the child at the lowest position is 2.00 m/s, what is the change in mechanical energy due to friction.
In a physics lab experiment, a student immersed 201 one cent coins (each having a mass of 3.00) in boiling water. After they reached thermal equilibrium, she quickly fished them out and dropped them into 0.240 of water at 20 in an insulated contai..
for a horizontal block spring system, the maximum displacement is 15cm. if k = 150N/m, calculate the mass of the block, calculate maximum value of kinetic energy
air traffic controllers usually describe the position of an aircraft relative to the airport by altitude, What are the x, y, and z components (in meters) of hte position vector
what slit separation required to desired interference patten.
The angle of elevation theta is increased slowly from the horizontal. Illustrate at what value of theta does the block begin to slide (in degrees)?
The electric motor of a model train accelerates the train from rest to 0.580 m/s in 33.0 ms. the total mass of the train is 563 g. Find out the average power delivered to the train during its acceleration. The units need to W for the final answer.
A 10cm -diameter cylinder contains argon gas at 10 atm pressure and a temperature of 60?C . A piston can slide in and out of the cylinder. What is the final length of the cylinder
Two electric dipoles with charges +Q, where Q = 5 mC, Find the magnitude of the electric force between the two dipoles.
A 50g ball of clay is thrown horizontally at 40m/s toward a 1.5kg block sitting at rest on a frictionless hi surface. The clayts and sticks to the block. What impulse does the clay exert on the block
The wake of a speedboat is 17â?? in a lake where the speed of the water wave is 2.8km/h. What Is the speed of the boat
At an outdoor market, a bunch of bananas is set into oscillatory motion with an amplitude of 20.0 cm on a spring with a force constant of 16.0 N/m. What is the weight of the bananas in newtons
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