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Describe how the antagonistic muscle pairs are working at the knee during the process of kicking a ball

As a person prepares to kick a ball, their hamstrings contract which causes their knee to bend/flex. Simultaneously, their quadriceps relax and lengthen. Here, the hamstring is the the agonist and the quadri...
AW
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What would we use the perfect tense for?

The perfect tense is used to describe a SINGLE COMPLETED ACTION in the past. For example, 'I did this ' or 'I have been to the shops.'
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Answered by Adam T. • French tutor
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What is phagocytosis?

Phagocytosis is the process in which White Blood cells, such as neutrophils, engulf pathogens e.g. bacteria.
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Answered by Anthony I. • Biology tutor
3200 Views

how do you find the equation of a line perpendicular to another line at a point?

The gradient of the perpendicular line is the negative reciprocal of the gradient of the original line. For example if the gradient of the original line is 4, the gradient of the perpendicular line is -1/4. ...
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Answered by Frankie G. • Maths tutor
3652 Views

What is Pythagoras' Theorem for finding the length of a side of a triangle?

Pythagoras' Theorem can only be used on right angle triangles. To find the length of side a, the theorem can be used as follows: a 2 =h 2 -b 2 Taking the square root of the right-hand side of the equation wi...
ES
Answered by Eloise S. • Maths tutor
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