Answer:
any amount of force will do it as time is not mentioned here
Answer:
Angular displacement of the turbine is 234.62 radian
Explanation:
initial angular speed of the turbine is
similarly final angular speed is given as
angular acceleration of the turbine is given as
now we have to find the angular displacement is given as
Answer:
The order is 2>4>3>1 (TE)
Explanation:
Look up attached file
Answer:
t = 1.51 hours
Explanation:
given,
Speed of space shuttle. v = 27800 Km/h
Radius of earth, R = 6380 Km
height of shuttle above earth, h = 320 Km
Total radius of the shuttle orbit
r' = R + h
r' = 6380 + 320
r' = 6700 Km
distance, d = 2 π r
d = 2 π x 6700
t = 1.51 hours
Time require by the shuttle to circle the earth is equal to 1.51 hr.
In Millikan oil drop experiment, when the switch is opened and by altering supply the charge of electron is determined.
Explanation:
Millikan's oil drop experiment is held to determine the terminal velocity and charge of the oil drop.
Firstly without any supply of voltage when an oil drop is sprinkled and these droplets gather electrons together and gives negative charge as they pass through air.
By applying and altering voltage applied on the plates, drop can be suspended in air. Millikan observed one drop after another, varying the voltage and noting the effect. After many repetitions he concluded that charge could assume only certain fixed values.
After conducting many times he concluded 1.602176487 ×10−19 C as the charge of an electron.
