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Atmospheric Pressure is about 1.0x10^5 Pa. What is the downward force of the air on a desktop of surface area 1m^2?

Here we are dealing with force, pressure and area so we use the formula F=PA. We simply slot in the given numbers where P=1x10 5 , and A=1. The resulting force is 1x10 5 N.
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Answered by Monique K. • Physics tutor
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A 1.6m long string fixed at both ends vibrates at its fundamental frequency... (i)what is this frequency?

For the first part, we consult the formula c=fλ. This tells us that wavelength is inversely proportional to frequency.. ie as one increases the other decreases. This means the lowest(fundamental) frequency g...
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Answered by Monique K. • Physics tutor
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What is the main difference between Mitosis and Meiosis

Well, the main difference between Mitosis and Meiosis is the end product of their respective division. Now the end product of Mitosis is a daughter cell that has the SAME number of chromosomes as the parent ...
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Answered by Chinyere I. • Science tutor
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How do you integrate by parts?

This is one of the trickier methods of integration, and it requires some practise. The basic idea is to split a function which would be difficult to integrate into two parts. Differentiating one part and int...
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Answered by Harry M. • Maths tutor
5738 Views

How do you multiply out brackets

This is simple as long as you remember FOIL: First Outside Inside Last So, for example, let's multiply out (2x+1)(4x-3) Multiply the first number from each bracket together: 2x times 4x = 8x 2 Then the outsi...
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Answered by Harry M. • Maths tutor
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