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A warehouse worker pushes a crate along the floor, by a force of 5.0N that points downward at an angle of 45° below the horizontal. find the horizontal component of the push.
1-Your answer should be positive if the force is to the right, negative if the force is to the lef.
2-Find the vertical component of the push.
Your answer should be positive if the force is upward, negative if the force is downward.
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 12.0 cm, giving it a charge of -15.0 microC. find the electric field: (a) just inside the paint layer, b) just outside the paint layer and c) 5..
A person walks 25.0 north of east for 3.10 km. explain how far would another person walk due north and due east to arrive at the same location?
Illustrate what is the maximum vertical displacement that he ball reaches during its trajectory?
A rocket of total mass 3180-kg is travelling in outer space with a velocity of 115 m/s toward the Sun.
After the collision (assumed elastic), the second ball is moving along the positive y axis. Elucidate the final direction of the first ball, and what are their two speeds?
A loudspeaker of mass 19.0 kg is suspended a distance of h = 2.00m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l= 3.50m. Illustrate what is the tension T in each of the cables?
A circuit is connected in parallel with two capacitor C1=6F and C2=3F with seperate switches S1,S2 and has a voltage of 20V. capacitor C1 is first charged by closing switch S1. switch S1 is then opened , and charged capacitor is connected to the un..
Derive an equation for radius r of circular path that the electrons follow in terms of the magnetic field B, the electrons’ velocity v, charge e, and mass m. You may assume that the electrons move at right angles to the magnetic field.
The proper length of one spaceship is 2.8 times that of another. The two spaceships are travelling in the same direction and, while both are passing overhead, an Earth observer measures the two spaceships to be the same length.
If you place the box on a dolly of mass 5.3 {rm kg} and with coefficient of rolling friction 1.3×10−2, illustrate what horizontal acceleration would that 171 {rm N} force provide?
A bead with a mass of 0.050g and a charge of 20nC is free to slide on a vertical rod. At the base of the rod is a fixed 10nC charge. In equilibrium, at what height above the fixed charge does the bead rest?
If the company is presently selling 45,000 units, but plans to spend an additional $108,000 on an advertising program, explain how many additional units must the company sell to earn the same net income it is now making?
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