Answer:
0.758 N
Explanation:
mass of ball, = 36 g = 0.036 kg
radius, r = 19 cm = 0.19 m
tangential velocity, v = 200 cm / s = 2 m /s
The tension is the string is equal to the centripetal force acting on the ball.
The centripetal force acting on the ball is given by
T = 0.758 N
Thus, the tension in the string is given by 0.758 N.
Answer:
the speed of the electron at the given position is 106.2 m/s
Explanation:
Given;
initial position of the electron, r = 9 cm = 0.09 m
final position of the electron, r₂ = 3 cm = 0.03 m
let the speed of the electron at the given position = v
The initial potential energy of the electron is calculated as;
When the electron is 3 cm from the proton, the final potential energy of the electron is calculated as;
Apply the principle of conservation of energy;
ΔK.E = ΔU
Therefore, the speed of the electron at the given position is 106.2 m/s
Answer:
B.) Greater than one
(at least I am pretty sure I am sorry if I am wrong I tried my best)
Explanation:
I think it is greater than one because it moves a short distance but it still is very helpful. The doorknob doesn't do much it just turns over and opens up a door. But, a doorknob CAN do much more. A doorknob can lock and keep things that you don't want inside out. It can also keep a door closed.
Answer:
yes the diagram is correct
Explanation: