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I have two thoughts on this. One, the speed of dark is the same as light. two, the speed of dark is infinite and we can’t observe it because it only replaces light as fast as the light ...
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General Physics 7 years 1 Answer 1017 views

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A giant “egg” explodes as part of a fireworks display. The egg is at rest before the explosion, and after the explosion, it breaks into two pieces, with the masses indicated in the diagram, traveling in opposite directions.
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General Physics 7 years 1 Answer 1487 views

  1. When an object moving in a circle at a constant speed?

    RvTDLR
    0
    October 4, 2017 at 2:55 pm
    Centripetal acceleration = v^2 ÷ r v^2 is constant. This mea

  3. If a feather is dropped from a height, would its apparent weight be equal to its true weight or zero as in weightlessness.?

    RvTDLR
    0
    October 4, 2017 at 2:53 pm
    In a gas, where there can be a terminal velocity, the drag i

  4. Would it be possible for somebody to explain how I can solve this problem?

    RvTDLR
    0
    October 4, 2017 at 2:51 pm
    Total weight = 300 + 500 = 800 N Let F1 be support force at

  5. Three resistors are connected. The potential difference between points A and B is 26 V.?

    RvTDLR
    0
    October 4, 2017 at 2:46 pm
    Need the resistance and whether they are connected in series

  6. Heisenberg Uncertainty Principle?

    RvTDLR
    0
    October 4, 2017 at 2:43 pm
    The HUP is about limitations in measuring capability. The wa

  7. If you’re in a diving pool 3 meters deep, why do your ears hurt if you swim to the bottom?

    RvTDLR
    0
    October 4, 2017 at 2:42 pm
    When physicists say there is a so-and-so chance that a parti

  8. If you’re in a diving pool 3 meters deep, why do your ears hurt if you swim to the bottom?

    RvTDLR
    0
    October 4, 2017 at 2:41 pm
    The rate of change of pressure is the issue. When you climb

  9. How many calories are necessary to change 250 g of ice to water at 20 degree Celsius?

    RvTDLR
    0
    October 4, 2017 at 2:38 pm
    To solve this problem, I will assume the temperature of the

  10. 3.8 kilograms of water are changed from ice at 0˚C into liquid water at 0˚C?

    RvTDLR
    0
    October 4, 2017 at 2:37 pm
    ( 1 ) The mass of water does not change for either change. (

  11. AS Physics Question – Can Someone Please Help ?

    RvTDLR
    0
    October 4, 2017 at 2:34 pm
    To solve this problem, the radius must be in meters and mass

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Four children are playing in a field. The children form a line, holding hands. The player at the front of the line starts to spin around faster and faster, causing the others to run in circle, as shown in the ...
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General Physics 7 years 1 Answer 4059 views

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Learning Goal: To make the connection between intuitive understanding of a seesaw and the standard formalism for torque. This problem deals with the concept of torque, the “twist” that an off-center force applies to a body that tends to make it rotate.
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General Physics 7 years 1 Answer 3992 views

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Learning Goal: To understand and use inverse-square relationships. Two quantities have an inverse-square relationship if y is inversely proportional to the square of x. We write the mathematical relationship as y = A/x2. Here, A is a constant. This relationship is sometimes written as 
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General Physics 7 years 1 Answer 3900 views

Question
A rocket generates a net force (F) of 2,050,000 newtons, and the rocket’s mass (m) is 40,000 kilograms. Use the formula F = ma to find the acceleration (a) achieved. A. 51.25 meters/second^2 B. 51.125 meters/second^2 C. 42.25 meters/second^2
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General Physics 7 years 1 Answer 3441 views