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Q1. Fred and Barney are two electric charges that are initially held 1 meter apart and experience an electric repulsion of 10 pounds of force. What would be the force of repulsion between them be if the two were moved closer together so that they were now ¼ meter apart?
Q2. The magnitude of vector is 34.17 units and points in the direction 344° counter clockwise from the positive x-axis. Compute the x-component of this vector.
A large cylindrical water tank is mounted on a platform with its central axis vertical. The water level is 3.75 m above the base of the tank, and base is 6.50 m above the ground. A small hole 2.23 mm in diameter has formed in the base of the tank. Bo..
An m=8.25 Kg mass is suspended on a string that is pulled upward by the force of F=83.3 N. If the upward velocity of the mass is 3.25 m/s right now, what is the velocity 5.50 s later.
What is the total mass of the reagents used in the combustion throughout the 30 days . The ball makes 17 oscillations in 16 seconds. What is it the mass of the ball.
A small metal bead, labelled A, has a charge of 29 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 29 nC charge, but not of necessity evenly. When the two beads are then placed 5.0 {rm cm} apart, the force betwee..
A person carries a long pole of mass 10kg and length 3.40 m at the angle of 60 degrees. Find the magnitude of the torque on the pole by reason of gravity.
In a game of basketball, a forward makes a bounce pass to the center. The ball is thrown with an initial speed of 2.50 m/s at an angle of 15.5° above the horizontal. It is released 0.73 m above the floor. What horizontal distance does the ball cover ..
Compute the voltage drop along a 23 length of household no. 14 copper wire (used in 15- circuits). The wire has diameter 1.628 and carries a 12 current.
A floodlight with a mass of 46.00 kg is used to clarify the parking lot in front of a library. The floodlight is supported at the end of horizontal beam that is hinged to a vertical pole. A cable that makes an angle of 29 degrees with the beam is att..
An observer, whose eyes are 1.99 m above the ground, is standing 35.0 m away from a tree. The ground is level, and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 23.0° above the horizontal. Ho..
A ball has fallen to the street below, and a passerby returns it by launching it at an angle of 53.0° above the horizontal at a point 26.0 m from the base of the building wall. The ball takes 2.20 s to reach a point vertically above the wall.
A uniform plank of length 4.50 m and weight 275 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 456 N walk on the overhanging part of the plank before it just be..
Monochromatic light from a distant source is incident on a slit 0.750 {rm mm} wide. On a screen 2.00 {rm m} away, the distance from the central maximum of the diffraction pattern to the first least amount is measured to be 1.35 {rm mm}.
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