A90-g bead is attached to the end of a 60-cm length of massless string. the other end of the string is held at point o, which is 200 cm above the floor, and the bead is swung counterclockwise at a constant speed in a vertical circle. the tension in the string when the bead is at the very bottom of the circle is 2.2 n. while the bead is in motion, a very sharp knife is inserted to cut the string directly below point o. how far to the right of the center of the circle does the bead hit the floor?
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Physics, 21.06.2019 21:00
State the right hand rule of the direction of magnetic field in a conductor carrying current
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Physics, 22.06.2019 05:40
Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.
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Physics, 22.06.2019 13:20
This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?
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Physics, 22.06.2019 15:50
Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air
Answers: 3
A90-g bead is attached to the end of a 60-cm length of massless string. the other end of the string...
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