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what is the centripetal force?

a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving.
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Answered by Othman A. Physics tutor
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What is the equation linking Power, Time, and energy? and Calculate the work done by a cyclist when his power output is 200 W for 1800 seconds?.

The equation linking Power, Time, and Energy is:P=W/tAnd here P= 200 W, and t= 1800 sHence, W= 200*1800 = 360,000 JNB: Remember here, the SI units are important.
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Answered by Othman A. Physics tutor
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Solve 5(x + 3) < 60

For this we must expand the bracket:5(x+3)= 5x+15and then we rearrange for 'x':x&lt;9
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Answered by Othman A. Maths tutor
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What is the simplified expression of: 3a - a x 4a + 2a? And what rule do we use to carry out the simplification?

To simplify the expression we use B(rackets)I(nidices)D(ivision)M(ultiplication)A(ddition)S(subtraction) in this specific order.Hence, here the first thing we need to do is identify each element of BIDMASS. ...
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Answered by Othman A. Maths tutor
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Explain one way in which smuggling in Britain during the 18th and 19th C was similar to smuggling in the 20th C.

One way in which the smuggling of goods between the 18th and twentieth Century were similar , was the nature of the items smuggled. Often these items were 'luxury goods'. For example in the 18th C such 'luxu...
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Answered by Alabama B. History tutor
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