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Point charges of 43.0 µC and 28.0 µC are placed 0.500 m apart.
1. At what point along the line connecting them is the electric field zero?
2. What are the magnitude and direction of the net electric field halfway among them?
The space between the plates of a capacitor is filled with water. By what factor does the water change the capacitance relative to that found when the plates are filled with air?
A 0.200H inductor is connected in series with a 85.0? resistor and an ac source. Derive an expression for the voltage vR across the resistor
A baseball is hit at 30.0 m/s at an angle of 53.00 above the horizontal. What was the original distance between the outfielder and the batter
All "simple machines" (pulleys) operate via the same principle. Explain how relative amounts of force used , distance traveled and work done apply to these machines
Two cylindrical rods have the same mass. One is made of silver (density = 10 500 kg/m3), What is the ratio (silver-to-iron) of the lengths
The inner radius of a bone is half the outer radius. What would the outer radius of the bone be if, for a given torque, it were to twist through the same angle as a steel rod of the same length with a 1-cm radius? (the polar moment of inertia of a ho..
Two loudspeakers emit sound waves along the x-axis. A listener in front of both speakers hears a maximum sound intensity when speaker 2 is at the origin and speaker 1 is at x = 0.550 meter. Calculate the phase difference between the speakers
imagine that the distance between two slits in a given experiment is d0.055 mm and that the distance between the slit
The catapults on the USS George H.W. Bush can launch aircraft from rest to a speed of 150 mph over a distance of 270 feet. Find the acceleration of the aircraft
a sample containing beryllium atomic mass 9 u aluminum 27 u and an unknown element is placed in a mass spectrometer.
a police officer in hot pursuit drives her car through a circular turn of radius 300m witha constant speed of 80.0km/h. what are the magnitude and the angle relative to vertical of the net force
A 86.3-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.63 rad/s. Find the angular velocity of the platform with its load
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