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A student of mass m=50kg runs an experiment. He throws a ball of mass m = 400g from a height h = 20m. What will be the speed of the ball he records just before it touches the ground?

First, we need to see what the important information in this problem is: the mass of the student is irrelevant as the problem focusses on the ball. So we now know that the important information is: m = 40...

MM
Answered by Martina M. Physics tutor
2021 Views

In year 11, 3/7 of pupils go on holiday abroad in the summer break. Out of these, 1/3 go to France. Determine the ratio of pupils who go to France in summer to pupils who do not go to France in summer.

We can approach this question by breaking it into two steps; first use the information given to work out what proportion of pupils in year 11 went to France. Once we have this, we can go on to find the ra...

AS
Answered by Anisah S. Maths tutor
2767 Views

A scalene triangle has 3 angles ABC in degrees, where A = (3x + 7), B = (4x + 5), C = (x + 8). Find the value of largest angle.

Equate all the angles to 180 degrees.3x+7+4x+5+x+8=1808x+20=1808x=160Therefore, x=20.Hence, A=3(20)+7=67B=4(20)+5=85C=20+8=28

AP
Answered by Alexander P. Maths tutor
3590 Views

How should I structure an essay?

In all of your essays, it is important to make sure that you are always answering the question being asked of you. You might have some great points about the witchcraft in Macbeth but that might ...

HB
Answered by Hallam B. English tutor
1901 Views

How do you conjugate the conditional tense?

You take the future stem of the verb, for -er and -ir verbs, this is the infinitive and for -re verbs, you take the e off the infinitive, and then you add the imperfect endings, -ais, -ais, -ait, -ions, -...

AR
Answered by Alice R. French tutor
1860 Views

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