Answer Posted / vishnu.p.sreekumar

When the cycle is in motion actually the cyclist is also moving along with the cycle .Therefore when the brake is applied ,the cycle gets slower but the cyclist continue to be in its state of motion due to the property of matter called inertia .

assuming friction is negligible, if a lever has a mechanical advantage of 5, how much effort in newtons is needed to lift a 10 newton load?

923

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Explain reflection of light?

986

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Who did first record the sound?

1010

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What is the formula of velocity?

960

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Tell me what is radium used for?

945

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The velocity of sound in gas depends upon what?

983

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Explain why are metals able to conduct current so well?

861

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Mercury is a better barometric fluid than water because?

1090

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When thomas edison was promoting the wide use of direct current, this personal enemy of edisons was the chief proponent and expert in alternating current?

936

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What generates seismic waves?

1069

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What is the musical sound?

1164

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what is specific fuel consumption,total fuel consumption,mean effective pressure,indicated thermal efficiency...

2621

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I just want to convert the voltage into current i.e. suppose I have 750V & 1A AC power then I want to convert it into 12V & 62A DC power only difficulty is that I don't want to use the tranceformer. Simply to say, I want to make the step-down without using tranceformer. Please, give me some ideas. And also I want the relation between Magnetic Induction & Weight of the body can be levitated. Or I can say, how much of magnetic induction requires to lift 500gms weight? I am heartily thankful to you.

2203

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Can a solid and liquid together be possible?

956

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a car starts from rest with uniform acceleration "a" for sometime and then with uniform retardation "b" and comes to rest. The time of motion is "t". find the maximum velocity attained by it?

1901

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