Answer:
by taring a balance the process of weighing by difference is done automatically. When a balance is tared with an object, on the balance pan, the weight of the object will be automatically subtracted from reading until the balance is re-tared or zeroed
Answer:
mass= 0.05kg
v=6m/s
pi=mvi=0.05*6=0.3kgm/s
p1f=0.3kgm/s
p2f=0.3kgm/s
p1f-p1i=0.3-0.3=0.6kgm/s
p2f-p2i=0.3(0.3) =0.6kgm/s
it was in opposite directions
Net Force = Applied Force - Friction
Fnet = (22.8N) - (2.3N)
Fnet = 20.5N
Light wave gets to you first
Light travels faster than sound and is around 300000000 m/s which is faster than sound waves. And by experience, when you are looking out the window, you can see a quick flash of light (lightning), light moves very fast
In general, there are three main states of matter that we encounter everyday. These are named solid, liquid and gas. It is a gaseous state that consists of atomic particles that move independently and interact only weakly with surrounding neighbours. An example of a gas within our atmosphere is oxygen.