A mirror only mists because the air is hot and the mirror is cold and if it is heated than the steam wont make the mirror become misty....
hope this helps :D
C, 5.3*10^3 kg m/s, is the correct answer to this question. Find the momentums of each object using p = mv, and then add the momentums together.
F = G m1*m2 / r^2 => [G] = [F]*[r]^2 /([m1]*[m2]) = N * m^2 / kg^2
That is one answer.
Also, you can use the fact that N = kg*m/s^2
[G] = kg * m / s^2 * m^2 / kg^2 = m^3 /(s^2 * kg)
Answer:
d = 63 m
Explanation:
Speed of Alex is 45 m/min.
We need to find distance he swim in 1 in 24 sec
45 m/min =0.75 m/s
Time, 1 min 24 sec = 84 sec
Speed = distance/time
Distance, d = v × t
d = 0.75 m/s × 84 s
d = 63 m
So, he will cover a distance of 63 m.