The units of pressure are called derived units because it is derived from base unit, which is distance and a derived unit which is force. Force is derived from acceleration, a derived unit as well, and mass, a base unit; which makes it a derived unit.
Answer:
Explanation:
Given
initial angular velocity is
when motor is turned of it started decelerating with angular acceleration
angle turned before coming to halt
here final angular velocity is zero
No of revolutions will be
Answer:
Object 2, which has a density of 1.9 g/cm3, since it has more density than freshwater.
Answer:
let distance be D km
total time taken, T (hrs) = D/30 + D/50
Average speed , V = total distance/ total time = 2D/T = 2/(1/30+1/50) = 37.5 km/hr
Explanation: