The correct answer is “C” ultrasound. Hope this helps!
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
Answer:
D wavelength
Explanation:
The different wavelengths determine the color.