Top answers

what happens to the respiratory system when you breathe out?

When you exhale, the intercostal muscles relax. The diaphragm also relaxes and the ribs move inwards and downward. There is a decreased volume of the chest so therefore the pressure increases in the lungs. D...
OC
7302 Views

What does the term terminal velocity mean?

Terminal velocity is the constant speed (in a particular direction) a body reaches when the forces are balanced , i.e. acceleration = 0 m s -2 . An example of this is a ball bearing dropped in oil. ⬆ Resista...
DD
Answered by Daisy D. • Physics tutor
6635 Views

A right-angled triangle has base 7cm and height 6cm. Find it's area.

Using the equation Area = 1/2 * base * height: Area = 1/2 * 7 * 6 Area = 21 units.
SB
Answered by Samuel B. • Maths tutor
8485 Views

How can I solve a quadratic equation by factorisation?

There are many ways to solve quadratic equations including completing the square, factorisation and using the quadratic equation. Factorisation involves breaking the quadratic equation into two sets of brack...
TB
Answered by Tiarnan B. • Maths tutor
5427 Views

Why is evil a problem?

This question refers to arguments about the existence of God. The God we normally think about in the west is supposed to have several characteristics. He is: Omnipotent (all-powerful) Omnibenevolent (all-lov...
OB
3251 Views