Is it not standard deviation? or am i just dumb lol
Answer:
Hence, The effect of using split rings in a simple DC motor is that the direction of the current flowing in the coil is reversed.
Answer:
The spring constant is 45.94 N/m.
Explanation:
Given that,
Length = 50 cm
Mass = 270 g
Stretching the spring = 24 cm
We need to calculate the spring constant
Using formula of energy
The change in potential energy equal to the change in kinetic energy.

Put the value into the formula



Hence, The spring constant is 45.94 N/m.