Question
I have been thinking about gravity and magnetic force, and seeing that these two forces have a field, does their field ever finish. For example, the Earth’s gravity field weakens the further you go from the Earth, but ...
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General Physics 7 years 1 Answer 910 views

Question
Shouldn’t they stop with time? I mean go ahead and shake a bottle of water, it will shake and it will eventually stop, unless you shake it again. What makes the sea water move so much? Why doesn’t ...
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General Physics 7 years 1 Answer 2400 views

Question
PRemastered
Learning Goal: To understand and apply the formula τ =Iɑ to rigid objects rotating about a fixed axis. To find the acceleration ɑ of a particle of mass m, we use Newton’s second law: , where 
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General Physics 7 years 1 Answer 8779 views

Question
PRemastered
Six roller-coaster carts pass over the same semicircular “bump.” The mass M of each cart (including passenger) and the normal force n of the track on the cart at the top of each bump are given in the figures. Rank the speeds of ...
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General Physics 7 years 1 Answer 1805 views

Question
My current picture of how gravity works is this (its probably wrong because it doesnt work for light. I’d like a better explanation from you guys): objects have to move in the speed of light in space ...
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General Physics 7 years 1 Answer 1085 views

  1. A boy is sliding down from a third floor window of a building. As he slides down the rope faster and faster , he becomes frightened?

    RvTDLR
    0
    October 4, 2017 at 3:13 pm
    I just read that in an impact some energy can be turned into

  3. A boy is sliding down from a third floor window of a building. As he slides down the rope faster and faster , he becomes frightened?

    RvTDLR
    0
    October 4, 2017 at 3:13 pm
    F = ΔmV so the faster he slows to a stop, the greater the te

  4. Why do sea waves never stop?

    RvTDLR
    0
    October 4, 2017 at 3:10 pm
    Uneven HEATING of the Earth's surface, due to coloration var

  5. An iron ball is dropped, it falls 153.7 m before hitting the ground…?

    RvTDLR
    0
    October 4, 2017 at 3:08 pm
    During the time the ball is falling, its velocity increases

  6. What is ionization?

    RvTDLR
    0
    October 4, 2017 at 3:06 pm
    Ionization is the process of creating ions. Ions are atoms t

  7. Does a black hole suck things in faster the closer it gets to the center?

    RvTDLR
    0
    October 4, 2017 at 3:04 pm
    A metaphor supported by the mathematics of general relativit

  8. Conservation of momentum question?

    RvTDLR
    0
    October 4, 2017 at 3:03 pm
    The Law of Conservation of Momentum only occurs when there i

  9. String theory?

    RvTDLR
    0
    October 4, 2017 at 3:01 pm
    Basically, in well-established Quantum Mechanics theory, all

  10. If sun pulls earth..then why didnt earth falls into it?

    RvTDLR
    0
    October 4, 2017 at 2:59 pm
    You are correct when you say the orbit of the earth around t

  11. A 90 kg person is sitting in a boat at rest with a mass of 100 kg?

    RvTDLR
    0
    October 4, 2017 at 2:57 pm
    Let’s determine the momentum of the stone. M = 5 * 4 = 20 Le

Question
PRemastered
The figure below shows two blocks suspended by a cord over a pulley. The mass of block B is twice the mass of block A, while the mass of the pulley is equal to the mass of block A. The ...
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General Physics 7 years 1 Answer 4355 views