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Can I have help with integrating by parts? I am unsure on how to use the formula.

Integrating by parts is simple. Simply put the equation into two parts, U and dV/dx. When considering which part of the original function will be U and which part will take dV/dx, you should consider which p...
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Answered by Milo L. • Maths tutor
3846 Views

Discuss the justifications for and limitations to free trade

​​​​​​Free trade refers to that which allows a country to trade competitively with another country as there are no tariffs or restrictions regarding what can be exported or imported. The main benefit of free...
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Answered by Izzy A. • Geography tutor
10137 Views

A ball is thrown from ground level at an angle of 30 degrees from the horizontal with a velocity of 20 m/s. It just clears a wall with a height of 5m, from this calculate the distances that the wall could be from the starting position.

The first thing to do is draw a diagram to visualise the problem. Next we write down all the information the question gives us as well as which values we want to find. For this question it would be S=5m, U=2...
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Answered by Aysha A. • Maths tutor
4810 Views

Why do some verbs take 'sein' in the perfect tense and how do I figure out, whether they do or not?

Verbs that take 'sein' in the past are called intransitive verbs and there are certain questions that you can ask yourself to figure out, whether a verb takes 'sein'. The first question is "Does the ver...
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Answered by Cian H. • German tutor
4981 Views

What is spermatogenesis ?

Gametogenesis is the process that converts primordial germ cells (PGCs) into mature male and female gametes. There are two types spermatogenesis and oogenesis specific to males and females respectively. Sper...
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Answered by Kareen E. • Biology tutor
11729 Views