Answer:
Explanation:
For simple pendulum the formula is
Where T is time period , l is length and g is acceleration due to gravity .
n is frequency
Putting the values
l = 1.584 m
Answer:
The current can be controlled by modifying the resistance value
Explanation:
The current can be controlled by modifying the resistance value, usually a variable resistance device called potentiometer is used. This can be observed mathematically using the ohm law which is defined as voltage equal to the current product by resistance.
V = I*R
where:
I = current [amp]
R = resistance [ohm]
V = voltage [volt]
We can see that if we reduce the resistance the current will be increased
I = v / R
And if we amplify the resistance (R) the current will be diminished
Answer: Cells are made of parts that work together to keep the cell alive.
Explanation: The cells in any kind of living organisms have organelles that counterparts on the activities and metabolic process in order for cellular respiration and also for homeostasis.
Physical change :) Hope you get it right! :D Good luck! let me know what else I can help you with. Have a great day! :D