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A pendulum of mass m is released from height h with a speed v at the bottom of its swing. a) What is the gravitational potential energy at height h and the kinetic energy at the bottom of its swing? b) Use conservation of energy to define the speed v.

a) To begin with we will calculate the gravitational potential energy at height, h. This is the result of the mass, m, being lifted through earth's gravitational pull, (approximated as g = 9.81 m/s at the...

RH
Answered by Rachel H. Physics tutor
6532 Views

How do I prepare quotes for a closed book exam?

Although a closed book exam means you won't get to have the texts in front of you, there's no need to panic, and no need to feel that you won't be able to use quotations! One of the best ways to approach ...

TD
4542 Views

Which of the following are found in plant cells but not in animal cells? Mitochondria, Cell Wall, Cell membrane, Chloroplasts, Cytoplasm, Vacuole

The cell wall, chloroplasts and vacuole are found in plant cell rather than animal cells. These components are know as organells of a cell and these organells for a plant are vital for its functionality a...

TA
38578 Views

Textbooks are stored on 2 shelves. Each shelf is 0.72m long and each textbook is 30mm wide. Can 50 textbooks be stored on these 2 shelves?

First off, we better convert the 30mm into m. Now, we know that in 1cm there are 10mm. So in 2cm, there are going to 20mm and in 3cm there are going to be 30mm. So each textbook is really 3cm thick. Now, ...

JD
Answered by Jack D. Maths tutor
8251 Views

What is the difference between differentiation and integration, and why do we need Calculus at all?

We need calculus to find out the properties complex curves that we cannot find with simple arithmetic as we would with linear graphs. Differentiation allows us to calculate the gradient of a curve at a sp...

SH
Answered by Samuel H. Maths tutor
9091 Views

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