25 kg
Explanation:
we can calculate the mass of the crate by using the Newton's second law:

where
F is the force acting on the crate
m is the mass
a is the acceleration
In this problem,
and
, so we can re-arrange the equation above to calculate the mass of the crate:

Explanation:
Given: Initial Velocity=0
Final Velocity= 20 m/s
Time= 4 s
Accleration: Unknowns
Use kinematic equation




so a = 5 m/s^2
Answer:
The correct option is;
a. Any process in which the entropy of the universe increases will be product-favored
Explanation:
According to the second law of thermodynamics, the change in entropy of a closed system with time is always positive. That is the entropy of the entire universe, considered as an isolated system, always increases with time, hence the entropy change in the universe will always be positive.

Therefore, any process in which the entropy of the universe increases will be product favored.
At a definite point, the bridge would begin oscillating to the matching rhythm as that
of the marching footsteps.
This oscillation would touch a determined peak when the bridge can
no longer tolerate its own
power and later collapses. So, soldiers are
systematic to break their steps
while passing a bridge.
Explanation:
Cell is a structural and fundamental unit mass of the body