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Bob sprints down a 100 metre track as fast as he can and as he arrives at the finish, a light gate cuts a timer that has been active since Bob began his sprint. It reads 12.45 seconds. calculate Bobs average speed during the sprint.

s=distance/time = 100/12.45 =8.03m/s

RW
Answered by Richard W. Maths tutor
2860 Views

A cylindrical rod of radius 7mm and Young’s Modulus 70 GPa has a weight F applied to it. The material experiences a strain of 0.2%. What force has been applied?

Young's Modulus is defined as the ratio of stress to strain. E = stress/strain. Stress is the force per unit area, F/A. By substitution, we can see that E = F/(A x strain). Rearranging gives F = E x A x s...

CW
Answered by Callum W. Physics tutor
2379 Views

How would a follower of Christianity respond to the issue of Abortion?

There are many different ways that a Christian could respond to the issue of abortion. A key aspect of Christianity is the sanctity. This is the belief that life is sacred as it is a gift from God hence i...

IA
2765 Views

How do I start writing a personal statement?

I'd recommend starting by writing down all the achievements/qualifications that you think could be relevant to a personal statement. Then make a second sheet filled with all the reasons why you want to do...

JB
2486 Views

f(x) = x^3 + 3x^2 + 5. Find f'(x) and f''(x).

With differentitaion you multiply the fatcor it's raised by and minus one from the order

e.g. y = x^n so y' = nx^(n-1)

So f'(x) = 3x^2 + 6x and f''(x) = 6x + 6

NS
Answered by Nikita S. Maths tutor
9493 Views

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