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What's the difference between elastic and inelastic collisions ?

Well it all depends on how the energy of the moving objects is transfered during the collision. In a elastic collision, first the objects are moving toward each other with both a certain kinetic energy, then...
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Answered by FLORENCE T. • Physics tutor
5671 Views

What is electrical current?

How much electrical charge has been transferred per second (from the relationship Q=It) charge = current x time.
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Answered by Suzanna H. • Physics tutor
2721 Views

What is terminal velocity and what causes it?

Initially, when you drop an object the only force acting on it is gravity. This accelerates the object towards the ground. As the objects speed increases so does the force of air resitance acting on the obje...
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Answered by Sam M. • Physics tutor
10071 Views

A torch uses 15watts of energy. It uses two 1.5volt batteries connected in series. What is the resistance in the circuit of the torch?

In order to answer this question, we need a formula which relates resistance to voltage and power. We don't already know this formula, but can create it from two formulae we already know: P=IV & V=IR. As...
HW
Answered by Hugo W. • Physics tutor
2481 Views

Could you explain the how an AC generator works?

Simply, a generator uses the rotation of a coil of wire in a magnetic field to produce electricity. (The principle of electromagnetic induction/ faraday's law : Any change in the magnetic environment of a co...
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13430 Views