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Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.6020 N when separated by 50 cm, center-to-center. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres repel each other with an electrostatic force of 0.1101 N. What were the initial charges on the spheres? Since one is negative and you cannot tell which is positive or negative, there are two solutions. Take the absolute value of the charges and enter the smaller value here.
The two liquids do not mix. What is the difference in height between the top surface of glycerine and top surface of the alcohol.
Two narrow slits 50 micrometers apart are illuminated with light of wavelength 500 nm . What is an angle of the m=2 bright fringe in radians? in degrees.
A 5g lead bullet travelling at 370-m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet whilst the other half is transmitted to the tree, what is the increase in t..
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with amplitude of 20.0 cm.
A tobagan with a mass of 15kg is being pulled with an applied force of 45N at an angle of 40 degrees to the horizontal. What is the acceleration if the force of friction opposing the motion is 28N.
A recent tomb has been unearthed in Egypt that shows the set of wall paintings and hieroglyphics of stars falling to and rising above the horizon over the course of the year (these stars served as sentinels for the pharaoh's passage through the un..
A 6 kg block slides along a frictionless horizontal surface. The block is acted on by two forces, a 4.5 N force to the left, and a 7.5 N force to the right. At what rate is the 4.5 N force doing work on the block at the instant when its speed is 4..
Can you please help me set this problem up? Suppose that now you want to make a scale model of the solar system using the ball bearing .0014 m to represent the sun. (a) How far from it would you place a sphere representing the earth?
What minimum coefficient of static friction is required? Is the reply you found reasonable? In other words, is he probable to stay on the merry-go-round.
suppose that the displacement of your hand is 0.70 m as you throw the ball straight up. How long is the ball is in your hand.
A boulder has 300J of potential energy sitting on the edge of cliff. What is the boulder's kinetic energy as it hits the ground.
Two lenses that are L = 42 cm apart are used to form an image, as shown in figure. Find the distance from lens and magnification of the image.
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