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Describe and explain the life cycle of a star?

A star begins its life from Hydrogen gas. Gas particles of Hydrogen gas are brought together due to the gravitational force of attraction between them. There is an increase in Kinetic Energy of these gas ...

AS
Answered by Arjun S. Physics tutor
3024 Views

What is 'Pathetic Fallacy' and what is its significance in literature?

Pathetic fallacy is a literary device that is used to create mood and atmosphere. It is the use of the weather or other atmospheric devices to reflect the mood and tone of the characters and their situati...

CW
Answered by Charlie W. English tutor
15854 Views

Outline the events that occur within the heart, which cause blood to move around the body.

One of the most crucial functions of the heart is to act as a pump which distributes the blood around the body. The blood is first collected in the atria, and then pumped from atria to the ventricles. The...

JK
5231 Views

How do muscles contract? Describe the sliding filament theory.

When an action potential from a motor neurone stimulates a muscle cell, a number of things happen to cause sarcomeres (the smallest contracting unit of a muscle cell) to shorten and contract very rapidly....

IL
Answered by Isabel L. Biology tutor
3865 Views

Given a graph of the displacement of a particle, how can you tell if it is in Simple Harmonic Motion?

There are two main features if an object is in SHM. The first is that it has a fixed maximum amplitude. That is to say, if the mean (halfway between the maximum values of oscillation (+ve and -ve)) displa...

JT
Answered by Johnny T. Physics tutor
2658 Views

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