What is one effect of steroid abuse in professional sports?
AThey cause athletes to stop training hard incorrect answer
BThey allow some competitors to gain an unfair advantage incorrect answer
CThey cause athletes to stop competing to win incorrect answer
DThey cause athletes to become selfish
You can't change time to a measurement of distance
I think it might be a or d i hope i have helped :)
Answer:
f = 1.18 x 10¹¹ Hz
Explanation:
The equation used to find frequency is:
f = c / w
In this form, "f" represents the frequency (Hz), "c" represents the speed of light (3.0 x 10⁸ m/s), and "w" represents the wavelength (m).
Since you have been given the value of the constant (c) and wavelength, you can substitute these values into the equation to find frequency.
f = c / w <---- Formula
f = (3.0 x 10⁸ m/s) / w <---- Plug 3.0 x 10⁸ in "c"
f = (3.0 x 10⁸ m/s) / (2.55 x 10⁻³ m) <---- Plug 2.55 x 10⁻³ in "w"
f = 1.18 x 10¹¹ Hz <---- Divide
Answer:
31.321 rad/s
Explanation:
L = Tube length
A = Area of tube
= Density of fluid
v = Fluid velocity
m = Mass = ![\rho Al](https://tex.z-dn.net/?f=%5Crho%20Al)
Centripetal force is given by
![F=\dfrac{mv^2}{L}\\ F=\dfrac{m(\omega L)^2}{L}\\ F=m\omega^2\\ F= 0.01A\rho\omega^2L](https://tex.z-dn.net/?f=F%3D%5Cdfrac%7Bmv%5E2%7D%7BL%7D%5C%5C%20F%3D%5Cdfrac%7Bm%28%5Comega%20L%29%5E2%7D%7BL%7D%5C%5C%20F%3Dm%5Comega%5E2%5C%5C%20F%3D%200.01A%5Crho%5Comega%5E2L)
Pressure is given by
![P=\dfrac{F}{A}=\rho gL\\\Rightarrow \dfrac{0.01A\rho\omega^2L}{A}=\rho gL\\\Rightarrow 0.01\omega^2=g\\\Rightarrow \omega^2=\dfrac{g}{0.01}\\\Rightarrow \omega=\sqrt{\dfrac{g}{0.01}}\\\Rightarrow \omega=\sqrt{\dfrac{9.81}{0.01}}\\\Rightarrow \omega=31.321\ rad/s](https://tex.z-dn.net/?f=P%3D%5Cdfrac%7BF%7D%7BA%7D%3D%5Crho%20gL%5C%5C%5CRightarrow%20%5Cdfrac%7B0.01A%5Crho%5Comega%5E2L%7D%7BA%7D%3D%5Crho%20gL%5C%5C%5CRightarrow%200.01%5Comega%5E2%3Dg%5C%5C%5CRightarrow%20%5Comega%5E2%3D%5Cdfrac%7Bg%7D%7B0.01%7D%5C%5C%5CRightarrow%20%5Comega%3D%5Csqrt%7B%5Cdfrac%7Bg%7D%7B0.01%7D%7D%5C%5C%5CRightarrow%20%5Comega%3D%5Csqrt%7B%5Cdfrac%7B9.81%7D%7B0.01%7D%7D%5C%5C%5CRightarrow%20%5Comega%3D31.321%5C%20rad%2Fs)
The angular speed of the tube is 31.321 rad/s