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An asteroid orbits the Sun at a constant distance of 4.080e+11 meters. The Sun's mass is 1.99 x 1030 kg. What is the orbital speed of the asteroid?
Consider the following equations of motion. v = v0 + at ?x = v0t + (1/2) at^2 v2 = v02 + 2a?x (a) Can the equations above be used in a situation where the acceleration varies with time? (b) Can they be used when the acceleration is zero?
A 42 kg pole vaulter running at 11 m/s vaults over the bar. Her speed while she is above the bar is 0.7 m/s. Avoid air resistance, as well as any energy absorbed by pole, and determine her altitude as she crosses the bar.
Three equal point charges, each with charge 1.15 , are placed at the vertices of an equilateral triangle whose sides are of length 0.600 . What is an electric potential energy of the system? (Take as zero the potential energy of the three charges ..
A free electron and a free proton are placed in an identical electric field. which of the following statement are true?
A thin 12 cm long solenoid has a total of 490 turns of wire and carries a current of 1.9 A. find the magnitude of the field inside near the center.
An extension cord made of two wires of diameter 0.129 {rm cm} (no. 16 copper wire) and of length 1.5 m (5 ft) is connected to an electric heater which draws 13.5 A on a 120-{rm V} line. How much power is dissipated in the cord.
An infinitely long, uniformly charged line of charge with linear density lamda = .1 C/m lies a distance of .68 m from the center of a sphere with radius .23 m, What is the amount of charge inside the sphere
A transformer with a turns ratio (secondary/primary) of 1:15 is used to step down the voltage from a 120-V wall socket to be used in a battery recharging unit.
explain the separation between the two sources. What is the displacement of the car between 3 P.M. and 6 P.M.
A 3.5 k and a 1.5 k resistor are connected in parallel and this combination is connected in series with a 1.8 k resistor. If each resistor is rated at 1/2 W, what is the highest voltage that can be applied across the whole network.
Write down the expression that shows the pressure
Four protons and four electrons are located inside a pyramid and are separate from each other, What is the net value of electric flux through the surface of the pyramid
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