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What is the electric potential at the surface of a gold atom’s nucleus, which is assumed to be spherical? The radius of a gold nucleus is 6.6*10^-15 meters and the atomic number of gold is 79.
An aircraft takes off at 203 km/h after accelerating from rest at 2.14 m/s2. What is the minimum runway length required
A cue ball, which has a mass of 0.17 kg, collides head-on with a stationary 8-ball, what was the velocity of the cue ball before and after collision
q1. a mass-spring system oscillates on a horizontal frictionless surface with amplitude of 3.89 cm. if the spring
Mutual induction can be used as the basis for a metal detector. A typical setup uses two large coils that are parallel to each other , find the new value of the induced emf
A 900kg car strikes a huge spring at a speed of 24m/s(Figure 1) , compressing the spring 5.5m. compute the spring stiffness constant of the spring
Sodium ions (Na+) move at 0.860 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
A small moon of a giant planet has an orbital period of 1.43 days and an orbital radius of 4.69 multiply.gif 105 km. determine the mass of the planet
An ideal gas is enclosed in a cylinder that has a moveable piston on top. The piston has a mass of 6200 g and an area of 5 cm2 and is free to slide up and down.
A house has a volume of 450 m3. The air-conditioning system is designed to replace the air in the house every hour, The air in the ducts flows at 5.0 m/s, find the width of the ducts
A distant galaxy emits light that has a wavelength of 557.1 nm. On earth, the wavelength of this light is measured to be 560.8 nm, Find the speed of the galaxy relative to the earth
he electric field in a particular region of space is found to be uniform, What is the change in electric potential energy of a charge q = 6.7 uC if it is moved from (x, y) = (20 cm, 45 cm) to (5 cm, 30 cm)
A small mailbag is released from a helicopter that is descending steadily at 2.04 m/s. (a) After 4.00 s, what is the speed of the mailbag? (b) How far is it below the helicopter? (c) What are your answers to parts (a) and (b) if the helicopter is ..
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