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Derive the escape velocity from the surface of a planet with radius, r, and mass, M.

This question is about converting kinetic energy into gravitational potential energy. Escape velocity is the speed required to leave the gravitational field of a mass, in this case it's a planet. In o...

TR
Answered by Thomas R. Physics tutor
19092 Views

When and how to use the imperative

La forme simple de l’impératif    

 

The present imperative is used to give an order or to offer advice.

 

In the imperative mood, th...

EJ
Answered by Eliza J. French tutor
3594 Views

Which has a lower boiling point chlorine or bromine, and why?

Chlorine, as chlorine has fewer electrons shells than bromine. As a result, chlorine is smaller and has a smaller atomic radius

The difference in size, relates to boiling po...

MF
Answered by Megan F. Chemistry tutor
70873 Views

What are the main factors that caused World War I (1914-1918)?

In order to better understand the causes of WWI, we use the following acronym- ANIMAL, which stands for

Alliances: Triple Alliance (1882) of Germany, Austria-Hungary and Italy vs Triple Entent...

NT
Answered by Nghia T. History tutor
15164 Views

How is a message transferred across a synapse?

A synapse is a junction between the end of one neuron (known as the pre-synaptic neuron) and either another neuron (known as the post-synaptic neuron) or...

MB
Answered by Max B. Biology tutor
12474 Views

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