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Q. Calculate the net charge on a substance consisting of a combination of 9.0 1013 protons and 1.0 1013 electrons.
How many excess electrons are on a ball with a charge of -1.440 10-16 C?
An alpha particle (charge = +2e) is sent at high speed toward a nucleus (charge = 74e). What is the electric force acting on the alpha particle when it is 2 10-14 m from this nucleus?
Two electrons in an atom are separated by 1.5 10-10 m, the typical size of an atom. What is the force between them?
Two negative charges of -2.9 10-6 C exert a repulsive force of 1.5 N on each other. By what distance are they separated?
What is the electric force between a glass ball with 2.5 µC of charge and a rubber ball with -5.0 µC of charge when they are separated by 5 cm?
Thunderstorms can have an electric field of up to 3.8 105 N/C. What is the magnitude of the electric force on an electron in such a field?
An object with a net charge of 22 µC is placed in a uniform electric field of 600 N/C, directed vertically. What is the mass of this object if it floats in this electric field?
find the mass of Earth from the period T and the radius r of the Moon's orbit about the Earth. T=27.3 days and r=3.82E5 km. suppose the Moon orbits the center of Earth rather than the center of mass of the Earth-Moon system.
How much energy is transferred to the water as heat
What apparent free-fall acceleration is experienced by the managers remaining on the rim assume that the average mass for each inhabitant is 65kg.
A rifle fires a 2.39 10-2-kg pellet straight upward, since the pellet rests on a compressed spring that is released when the trigger is pulled. The spring has a negligible mass and is compressed by 9.17 10-2 m from its unstrained length. The pellet r..
A Sphere on a Horizontal Surface starts from Rest. If the Force is applied facing to the Right at the Top furthest Point of the Sphere from the Horizontal Surface, the Sphere will start experiencing Roll and Slip at the same time. In which directi..
The pilot of an aircraft wishes to fly due west in a 34.60 km/h wind blowing toward the south. The speed of the aircraft in absence of a wind is 145 km/h.
Liquid nitrogen has a boiling point of 77.3 K and a latent heat of vaporization of 2.01 105 J/kg. A 60.0-W electric heating element is immersed in an insulated vessel containing 46.5 L of liquid nitrogen at its boiling point. How various kilograms of..
The scalar product of vectors and is +51.0. Vector has magnitude 9.00 and direction 28.0 west of south. If vector has direction 36.0 south of east, what is the magnitude of.
The yellow light from a helium discharge tube has a wavelength of 587.50. When this light illuminates a certain diffraction grating it produces a first-order principal maximum at an angle of 1.050.
A 0.410 kg pendulum bob passes through the lowest part of its path at a speed of 3.13 m/s. What is the tension in the pendulum cable at this point if the pendulum is 76.2 cm long.
There are two major types of aberration (defective image formation) in lenses: spherical and chromatic. Spherical aberration comes from fact that a spherical lens has the property of focusing parallel rays to a single point only approximately.
What must be the value of the putty mass m so that the amplitude after the collision is one-half the original amplitude.
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