Search over 10,000 free study notes

Acceleration is defined as

A = change in velocity / time,

For this example

A = (34-25 )/ 6 = 9/6 = 1.5 m/s^2

By taking the formula F=m*a, and rearranging the make a the subject, we get a=F/m. Then by substituting in the values given we can work out that a=30/10=3. The units of acceleration are ms^-2 so...

What do we know about fossil fuels?

We know they have a high energy density upon combustion, hence why we've combusted them since the beginning of the industrial revolution to increase economic gro...

The two forces acting on the object are weight due to gravity pulling the object towards earth, and drag resisting this motion. When the object is first released, drag is small as velocity is low, so the ...

Star formation begins when dust and gas starts to gather to form a cloud called nebula. Gravity causes the cloud to spiral and form a Protostar, where gravity accelerates...