Answer:
2.4 rad/s
Explanation:
= Initial angular velocity = 3.2 rad/s
= Final angular velocity of the system
= Initial angular momentum = 1.8 kgm²
= Final angular momentum = 0.6 kgm²
As there is no external torque then the angular momentum in the system is conserved
The angular velocity of the system is 2.4 rad/s
Answer:
C) 1.4W
Explanation:
Given;
energy of the battery, E = 10,000 J
duration of the battery, t = 2 hours
The power consumption of the battery is calculated as;
Therefore, the power consumption of the battery is 1.4 W
You already have the speed, now you need the time.
I will use the formula for speed which is S=D/T.
S=Speed D=Distance T=Time.
So here we have, 18m/s = 52m/T
we do 18 divided by 52 which would be .3461.
.3461 seconds is how long it took the stone to reach the water.
Answer:
4363.3231 feets²
Explanation:
Given that :
Distance, r = 50 ft
θ = 200°
The arc length of area covered :
Arc length = θ/360° * πr²
Arc length = (200/360) * 50 ft ^2 * π
Arc length = 0.5555555 * 2500 * π
Arc length = 4363.3231 feets²
