Answer:
The final velocity of the second car is 57 m/s south.
Explanation:
This is an elastic collision between two train cars. In this case, the total kinetic energy between the two bodies will remain the same.
The formula to apply is :

where ;

Given in the question that;

Apply the formula as;

{14650*18}+{3825*11} = {14650 *6} + {3825 * v₂f}
263700+42075=87900 + 3825v₂f
305775 =87900 + 3825v₂f
305775-87900 = 3825v₂f
217875=3825v₂f
217875/3825 =v₂f
56.96 = v₂f
<u>57 m/s = v₂f { nearest whole number}</u>
Answer:
44 m/s^2
Explanation:
Force, F = 7.95 N
mass, m = 181 g = 0.181 kg
By use of Newton's second law
F = m x a
a = F / m = 7.95 / 0.181 = 44 m/s^2
Thus, the acceleration of the hockey puck is 44 m/s^2.
I believe the coma is formed from the dust and gas from a comet.
Hope this helps!! :)
Answer:
13.28 km
Explanation:
The bird flies from the runner, to the finish line, and back to the runner. We can write two equations for the distance it travels:
d = 8.3 km + 8.3 km − 8.6 km/hr × t
d = 34.4 km/hr × t
Solve for t in the second equation and substitute into the first:
t = d / 34.4
d = 8.3 + 8.3 − 8.6 (d / 34.4)
d = 16.6 − 0.25 d
1.25 d = 16.6
d = 13.28
The bird flies a cumulative distance of 13.28 km.
Answer:
an animal that feeds on carrion, dead plant material, or refuse.
Explanation: