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A cannon ball is shot at an angle of 60 degrees from a cliff of height 50m, if it's inital speed is 20ms^-1 what horizontal distance does it travel before hitting the ground.

This question uses the equations of motion, commonly referred to as the SUVAT equations. We will need to consider the horizontal and vertical components of motion separately. As the vertical component det...

JA
Answered by Jack A. Physics tutor
7344 Views

Describe the structure of proteins

Proteins are amino acid polymers, joined by peptide bonds which are formed via condensation reactions. The primary structure is the order of amino acids, secondary structure is the folding of polypeptide ...

AC
Answered by Anthony C. Biology tutor
2355 Views

Express 1/((x^2)(1-3x) in partial fractions.

This is a step above a partial fraction question seen in core 1 and core 2, made mkre difficult due to the double (repeated) root of x. To solve this we must consider that there is 3 separate roots, x, x^...

JA
Answered by Jack A. Maths tutor
8828 Views

What is a convection current?

A convection current is the way that heat is transferred throughout a fluid. By fluid, we mean a liquid or a gas, where the molecules are free to move. Imagine a cup of water being heated from the bottom....

LC
Answered by Luke C. Physics tutor
7595 Views

Explain the disadvantages of an ageing population for one country.

Using a case study already researched, first name the country and give an outline of how the population is ageing with a few brief statistics. Depending on the marks for the questions give 3-4 impacts of ...

AG
Answered by Annabel G. Geography tutor
3364 Views

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