I think disproved geocentric theory proved that planetary orbits are elleptical
Answer:
553.8 Watts
0.74 Hp
Explanation:
Power is work done per unit time, expressed as
P=W/t
Where P is power, t is time taken and W is work done.
Work is the product of force and perpendicular distance moved hence W=Fd where F is force and d is perpendicular distance.
Substituting W with Fd into the first formula then power is expressed as
P=Fd/t
Substituting F with 600 N, d with 6 m and t with 6.5 seconds then
P=600*6/6.5=553.84615384615 Watts
Rounded off as 553.8W
1 W=0.00134 british horsepower
553.8 W=0.00134*553.8=0.742719926544903597 Hp
Alternatively, we divide the watts by 746 hence 553.8/746=0.7424211177562
Rounding off, power is equal to 0.74 Hp
This is reactivity. It describes how easily one substance reacts with another
Answer:
Explanation:
Acceleration is equal to the change in velocity over the change in time, or
where the change in velocity is final velocity minus initial velocity. Filling in:
Note that I made the backward velocity negative so the forward velocity in our answer will be positive.
Simplifying that gives us:
and then isolating the final velocity, our unknown:
3.0(6.0) = v + 3.0 and
3.0(6.0) - 3.0 = v and
18 - 3.0 = v so
15 m/s = v and because this answer is positive, that means that the car is no longer rolling backwards (which was negative) but is now moving forward.
