Answer:
Unbalanced
Explanation:
There is an acceleration. Look at the direction of the arrows.
We know the equation of motion v = u+ at, where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.
In this case Final velocity = -3.1 m/s, negative sign indicates it is pointing downward.
acceleration = - 3.7m/
. Negative means acceleration is towards center of planet Mars.
Time taken = 3 seconds

So jumping velocity of Julia = 8 m/s
Given: Heat Qout means useful work = 2800 J
Heat Qin = 8900 J
Required; Efficiency = ?
Formula: Efficiency = Qout/Qin = x 100%
= 2800 J/8900 J = 0.3146 X 100 %
Efficiency = 31.46%
vibrations in strings, ripples on water surface and electromagnetic waves.
Answer:
141178.8
Explanation:
use : density x velocity²
1.2 x 343² = 141178.8 pa