3 Figure 2 shows a way of projecting a small trolley up a sloping track. alshows
button
track
trolley
h
P
Figure 2
When the button is pressed, a spring is released in P that projects the trolley up the track.
The trolley travels up the track, stops and then rolls back down.
The spring in P always exerts the same force when projecting the trolley.
(a) A student investigates how the mass of the trolley affects the maximum vertical
height, h, reached by the trolley.
State the measurements the student should make to complete the investigation
You should make use of the equipment shown in Figure 2 and any other
equipment that is needed.
Your answer​

dopamine..

"it was found that some people who were taking the drug l-dopa to raise their levels of dopamine were developing schizophrenic-like symptoms supporting research a strength of the dopamine hypothesis is that there are many studies which have shown support for the neurochemical explanation."

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle