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A rock fragment weighing 50N is displaced from the top of a cliff and falls 0.12 km to the ground. Calculate the kinetic energy (in J) of the rock just before it hits the ground. Assume air resistance is negligible.

Applying the law of conversation of energy, the gravitational potential energy (GPE) stored by the rock before falling is transformed into other types of energy as it falls. Without any external forces ac...

JH
Answered by Jack H. Physics tutor
1734 Views

Let f(x) = x^2 - 1. A vertical translation of 3 and a horizontal translation of -2 is applied. Write the new function g(x) in the form g(x) = ax^2 + bx + c

Let f(x) = x2- 1To apply a vertical translation, simply add the value to the overall equation. In this case it is p...

JH
Answered by Jack H. Maths tutor
2488 Views

What is 800 million in standard form?

Standard form is a way of writing really big numbers in what is often a more compact manner. It also makes a really large number more readable. To put a number in standard form we write it by having a num...

JF
Answered by Joel F. Maths tutor
38678 Views

Find the derivative y= x^2-6x+20?

The derivative is calculated by multiplying by the degree of the variable then taking taking away 1 from the degree.So to calculate the derivative of x^2 we multiple the variable (which is x) by the degre...

DD
Answered by David D. Maths tutor
3253 Views

How do you solve simultaneous equations?

To solve simultaneous equations you need to cancel out variables like x and y one at a time to solve for the other. In the edexcel GCSE 2017 paper this question came up: solve simultaneously x2...

LN
Answered by Libby N. Maths tutor
2651 Views

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