Answer:
3924 N
5124 N
4004 N
2884 N
4004 N
Explanation:
m = Mass of elevator = 400 kg
g = Acceleration due to gravity = 9.81 m/s²
a = Acceleration
f = Friction force = 80 N
When the elevator is stationary only the acceleration due to gravity will be acting on it
Tension

The tension is 3924 N
The balanced force equation would be

The tension is 5124 N
When velocity is constant acceleration is zero

The tension is 4004 N

The tension would be 2884 N
When velocity is constant acceleration is zero

The tension is 4004 N
Answer:
A True ( I Think Its True I'm Not Intirely sure)
Explanation:
The scientist who discovered the two elements radium and polonium would be Marie Curie in 1898.
Hope this helps!
A=vf-vi / time
* vi here is zero as the runner started from rest*
so
a= 10-0/5 which equals 2 m/s^2
Distillation is a process in many laboratories for the purpose of
separating and/or purifying components of a liquid mixture. The distillation apparatus used consists of
three major parts: <span>distillation flask - to heat the mixture and volatilize the components,
a condenser to cool the vapors back to liquid state, and a collection vessel. The apparatus is typically made of glass and
therefore subject to breakage.</span> <span>All components of the distillation apparatus
should be protected to a stable stand or rack to avoid it from falling over.</span>