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Presume we have two galaxies that are sufficiently far apart so that the distance among them increases due to Hubble's expansion. If I were to connect these two galaxies with a rope, would there be tension in the rope? Would the tension increase with time? Is the origin of the tension some sort of drag among the expanding space and matter?
A child in a boat throws a 6.40kg package out horizontally with a speed of 10.0 m/s. determine the total work performed by the child
Water has a mass mole of 18.0g/mol, each water molecule(H20) has 10 elelctrons. What is net charge of all electrons? How many electrons are there in one liter (1.00 x10-3m-3) of water?
In a series circuit, a generator (1332 Hz,14.8 V) is connected to a 15.0-Ω resistor, a 4.17-µF capacitor, and a 5.82-mH inductor. Find the voltage across each circuit element
What electric potential energy will a fourth charge q4 = 4mC and located at the origin with respect to the other three charges experience and what is the pendulums period for small angle oscillations?
A rock falls off the back bumper of a truck which is traveling at 26.8 m/s. The rock hits the ground 0.387 seconds after it leaves the bumper. How high above the road is the trucks bumper
The power of a certain CD player operating at 120V rms is 25.0W . Assuming that the CD player behaves like a pure resistance, find the maximum instantaneous power
Three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 4.0 cm. What is the net electric force acting on particle 3
A 376 g oscillator has a speed of 116 cm/s when its displacement is 1.60 cm and 63.0 cm/s when its displacement is 6.70 cm
A 20-kg uniform disk is at rest on a horizontal surface when a horizontal force of F=400N is applied at the center of the disk to the right. Determine the acceleration of the mass center
Three identical loudspeakers, spaced with 3.0 meters among adjacent speakers, play a 170Hz tone in a room where the speed of sound is 340m/s. You are standing 4.0 m in front of the middle speaker. At this point, the amplitude from each speaker indivi..
A proton is located at the origin, and a second proton is located on the x-axis at x=6.00 fm. (a) compute the electric potential energy associated with this configuration.
a roller coaster moves 85m horizontallythen travels 45m at an angle of 30.0 degrees above the horizontal. what is its
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