two forces equal in magnitude and opposite in direction act at the same point on an object. is it possible for there to be a net
toeque on the object?
1 answer:
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Answer:
a = -36.8 m/s/s
Explanation:
Initial speed of the car
finally car will stop after it cover the distance
so we have
here we have
Answer:
85413.20177 W
2050.831684248 kWh
184.5748512 dollars
Explanation:
d = Diameter of blade = 100 m
r = Radius =
= Efficiency = 0.34
= Density of air = 1.25 kg/m³
V = Velocity of wind = 8 m/s
A = Area =
The power of a wind turbine is given by
The power is 85413.20177 W
Energy is given by
The energy is 2050.831684248 kWh
The revenue is given by
The revenue generated is 184.5748512 dollars
Given :
The ball of a ballpoint pen is 0.5 mm in diameter and has an ASTM grain size of 12.
To Find :
How many grains are there in the ball?
Solution :
Volume of ball of the ballpoint is :
Now, grain size of 12 has about 520000 grains/mm³.
Therefore, number of grains are :