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Three indistinguishable balloons are given charges of -1.9 μC, -2.5 μC, and +2.0 μC correspondingly. You are given two of them at random, and you observe that they repel each other. Obtain the total charge of balloons you have been handed.
At a point P, the electric field is 71 N/C at 22 degrees clockwise from the positive x axis. A particle of mass 1.5 kg and charge 0.17 C is located at P.
A loudspeaker of mass 25.0 is suspended a distance of = 2.20 below the ceiling by two cables that make equal angles with the ceiling. What is the tension in each of the cables
A light wave was reflected off of a mirror at an angle of15°. What was the incident angle
An object is located 13.9 cm in front of a convex mirror, the image being 8.89 cm behind the mirror. A second object, twice as tall as the first one, is placed in front of the mirror, but at a different location.
A rock climber throws a small first aid kit to another climberwho is higher up the mountain. what is thevertical height between the two climbers
A hydrogen atom is in the 3d energy state. Decide the following: The principle quantum number and the energy of the state. The orbital quantum number and the orbital angular momentum of the atom’s electron.
a standing wave is established in a 89 cm long string fixed at both ends. the string vibrates in 6 segments when driven
A 0.88 kg mass attached to a vertical spring of force constant 196 N/m oscillates with a maximum speed of 0.40 m/s. Find the following quantities related to the motion of the mass.
A man observes snow falling vertically when he is at rest, but whenhe runs through the falling snow at a speed of 6.80 m/s, it appears to be falling at an angle of28.0° relative to the vertical. Find the speed of the snow relative to the earth.
A microwave oven is powered with an electron tube called a magnetron, which generates electromagnetic waves of frequency2.75 GHz. The microwaves enter the oven and are reflected with the walls.
An object, mass 1.48 kg, moves in a horizontal circle with a radius of 1.52m. The object has an intial velocity of 28.0 m s-1. If the kinetic coefficient of friction between object and surface is 0.382.
A copper wire that is 1 mm thick and 30 cm long is connected to a 1 V battery. What is the power dissipated in the wire at this temperature
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