The surface area of a sphere of radius r is
A(r) = 4πr²
The rate of change of the surface area with respect to time is
The radius increases at the constant rate of 2 cm/min, therefore
When r = 100 cm, the rate of change of the surface area is
16π(100) cm²/min
= 1600π cm²/min
= 5026.5 cm²/min
Answer: 1600π or 5026.5 cm²/min
Because the handle bars have nothing to do with the force of the pedals
Answer:
Hey mate.....
Explanation:
This is ur answer....
<em>A human has 4 types of teeth:-</em>
<em>--> 8 Incisors.
</em>
<em>--> 4 Canines.
</em>
<em>--> 8 Premolars.
</em>
<em>--> 12 Molars (including 4 wisdom teeth)</em>
<em></em>
Hope it helps!
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Answer:
a.
b.
Explanation:
I have attached an illustration of a solid disk with the respective forces applied, as stated in this question.
Forces applied to the solid disk include:
Other parameters given include:
Mass of solid disk,
and radius of solid disk,
a.) The formula for determining torque (), is
Hence the net torque produced by the two forces is given as a summation of both forces:
b.) The angular acceleration of the disk can be found thus:
using the formula for the Moment of Inertia of a solid disk;
where = Mass of solid disk
and = radius of solid disk
We then relate the torque and angular acceleration () with the formula:
Upthrust is the force that is pushing you up. Kinda to stop you from sinking right into the Earth. Upthrust is simply any force that is causing something to be pushed upwards. Kinda like the opposite of gravity, which is pulling you down =]
Hope this helps ❤️