Physics, 31.12.2019 05:31 Gearyjames8
Aphysics major is working to pay her college tuition by performing in a traveling carnival. she rides a motorcycle inside a hollow, transparent plastic sphere. after gaining sufficient speed, she travels in a vertical circle with radius 13.0 m. she has mass 70.0 kg, and her motorcycle has mass 40.0 kg. (a) what minimum speed must she have at the top of the circle for the motorcycle tires to remain in contact with the sphere? (b) at the bottom of the circle, her speed is twice the value calculated in part (a). what is the magnitude of the normal force exerted on the motorcycle by the sphere at this point?
Answers: 3
Physics, 21.06.2019 16:30
In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.
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Physics, 22.06.2019 03:40
Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.
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Physics, 22.06.2019 05:00
Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?
Answers: 3
Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
Answers: 1
Aphysics major is working to pay her college tuition by performing in a traveling carnival. she ride...
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