Explanation:
first the rocket is moving quicker and quicker so KE increases and momentum is the same as it would be then constant before the explosion
Answer
given,
two box of masses = M_a = 11 kg
M_b = 31 Kg
If A and B are 5.0 and 1.5 m, respectively, above the ground.
h = 5 - 1.5 = 3.5 m
a) , b) using energy conservation
velocity of the lighter and heavier box
v = 8.29 m/s
c ) ratio of kinetic energy
ratio = 2.82
C play all the songs on shuffle. entropy has to do with randomness
Answer:
1.526 m
Explanation:
The motion sensor sends sound waves in air which travels at a speed of 343 m per second at 20 degree. If d be the distance of the reflecting object
total distance travelled = 2d
Time taken t = 8.9 x 10⁻³ s
velocity v = 2d / t
343 = 2 d / (8.9 x 10⁻³)
d = 1.526 m