Answer:
9,000 N.
Explanation:
Workdone can be defined as the ability to do work. It is also the product of the force and the distance it is being moved.
Mathematically,
W = F * d
= 180,000/2
= 90,000 N.
Weight of the 10 cars = 90,000 N.
Weight of a car = 90000/10
= 9,000N.
"Acceleration" does NOT mean "speeding up".
"Acceleration" means ANY change in the speed or direction of motion.
An object can speed up, slow down, or turn a corner.
Each of these is an example of acceleration.
Answer:
300K, 600K
Explanation:
ΔS =nCp ㏑()
= (2.5) (78.314) ㏑() = 14.41
Qp =(2.5) (8.314) (T2-T1)
= 6236 J.
=> 20.8 (T2-T1) - 6236
=> T2-T1 = 300
=> T2=T1 + 300
20.8 ㏑() =
=>
=> T1 = 300K
=> T2 = 600K
The answer is C. an electron in an orbit has a fixed energy.