Answer:
Athlete A
Explanation:
Power is the rate of doing work and it is calculated as follows:
Power = work done/time taken = mgh/t
(for work being done against gravity)
So for athlete A
P = (100 kg * 9.8 N/kg* 0.6m)/0.5 s = 1176 W
For athlete B
P = (150 kg * 9.8 N/kg* 0.6m)/1 s = 882 W
For athlete C
P = (200 kg * 9.8 N/kg* 0.6m)/2 s = 588 W
For athlete D
P = (250 kg * 9.8 N/kg* 0.6m)/2.5 s = 588
Answer:
C.
Measure the wear on his treads before and after riding a certain number of laps.
for #2 the volume of a cube is V=S^3
so it V= 8^3 = 512cubic cm
m = 5.6/512 = 0.011 kg/cm^3
#3 is correct
Answer:
Your answer is B.!
When things in general get hotter, the atoms inside move faster and vise versa with cold.
(for example water); if you put water in a pot on a stove to boil, its gets so hot to where the atoms are moving really fast to get it to look like that.
Please mark brainiest! if this answer is wrong, (which I'm pretty sure it isn't) then pick D. :D
