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A proton has an initial speed of 4.9 x 105 m/s.
(a) What potential difference is required to bring the proton to rest?(b) What potential difference is required to reduce the initial speed of the proton by a factor of 4?(c) What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 4?
a speaker at an open-air concert emits 600 w of sound power radiated equally in all directions.a what is the intensity
A sample of isotope of 131 Iodine (half-life of 8.04 days) has activity of 5.8 mCi at the time of shipment. How much time has elapsed between the two measurements
Communication with submerged submarines via radio waves is difficult because seawater is conductive and absorbs electromagnetic waves. Penetration into the ocean is greater at longer wavelengths, so the United States has radio installations that tran..
A straight wire in a magnetic field experiences a force of 0.029 N when the current in the wire is 2.5 A. What is the new current
light from a laser beam with a wavelength of 530 nm passes through a narrow single slit and is observed on a screen 1.0
a parallel plate capacitor of capacitance c0 has plates of area a with separation d between them. when it is connected
In an experiment using an inclined track with a dynamics cart, the computer failed, find the cart's acceleration, mass, and the tension in the string connecting the cart to the accelerating 50g mass
A woman with mass 53.5 kg is standing on the rim of a large disk that is rotating at 0.510 rev/s about an axis perpendicular to it through its center. Calculate the magnitude of the total angular momentum
A 5 kg mass attached to a horizontal spring is pulled from its equilibrium position by 3 m and let go. what is the maximum velocity of the mass
A car starts from rest and accelerates at a constant rate of 3.00 m/s^2 until it is moving at 18.0 m/s. The car then decreases its acceleration to 0.500 m/s^2 and continues moving for an additional 250 m. Find the total time taken.
the electric field 0.340 m from a very long uniform line of charge is 650 nc. how much charge is contained in a 2.00-cm
In a hydraulic lift, the maximum gauge pressure is 18.5 atm. what is the heaviest vehicle that can be lifted
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