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Two identical point charges are fixed to diagonally opposite corners of a square that is 0.495 m on a side.. Each charge is +2.94 10-6 C. How much work is done by the electric force as one of the charges moves to an empty corner?
If the radius of the equipotential surface of point charge is 13.5 m at a potential of 2.10 kV, what is the magnitude of the point charge creating the potential
A softball of mass 0.220kg that is moving with a speed of 8.5m/s collides head-on and elastically with another ball initially at rest. Calculate the mass of the target ball
A person driving her car at 57km/h approaches an intersection just as the traffic light turns yellow. She knows that yellow light lasts only 2.0 s before turning to red, and she is 30m away from the near side of the intersection.
A wall is composed of two materials, material 1 has a thickness of 3.49 cm and a thermal conductivity of 0.1 J/msCo while material two has a thickness of 7.01 cm, what is the energy loss per second to the nearest watt
how long does the block remain in contact.
A 1000 watt hair dryer is connected to 120 V source. Find the current drawn by the hair dryer
A spherical conducting shell has an interior radius of 18 cm and an outer radius of 21cm. The shell carries a net charge of -2.4 micro coulombs. A point charge of charge +6.4 micro coulombs is placed at the center of spherical shell.
An object of mass 1.0kg is attached to a spring with spring constant 15 N/m. what is the amplitude of oscillation
A 4 m long rope weighing 1.4 N is stretched so that the tension is 10 N. The left end is then made to oscillate vertically at 4 Hz by shaking the rope up, What is the speed of the traveling waves on the rope
Illustrate what is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer.
A proton has a mass of 1.67 x 10^-27 kg and a charge of 1.60 x 10^-19 C. What is the gravitational force on a single proton at Earth's surface.
Batteries are rated in terms of ampere-hours (A · h). For example, a battery that can produce a current of 3.00 A for 5.00 h is rated at 15.00 A · h. what is the value of the electricity produced by this battery
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