Which instrument of the roman rupublic held the most power?
1 answer:
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The area of the circle with radius r is
A = πr²
The rate of change of area with respect to time is
The rate of change of the radius is given as
Therefore
When r = 10 ft, obtain
Answer: - 40π ft²/s (or - 127.5 ft²/s)
A = πr²
The rate of change of area with respect to time is
The rate of change of the radius is given as
Therefore
When r = 10 ft, obtain
Answer: - 40π ft²/s (or - 127.5 ft²/s)
Answer:
- The initial speed of the truck is 21.93 m/s, and the initial speed of the car is 19.524 m/s
Explanation:
We can use conservation of momentum to find the initial velocities.
Taking the unit vector pointing north and
pointing east, the final velocity will be
The final linear momentum will be:
As there are not external forces, the total linear momentum must be constant.
So:
As initially the car is travelling east, and the truck is travelling north, the initial linear momentum must be
so:
so
So, for the truck
And, for the car