You are correct the answer would be C
hope i helps
Well, Harry, what you said is not necessarily true the way you said it.
But we know what you mean, and what you meant to say is true.
The Doppler effect is observed if there is relative radial motion
between an object and an observer <em><u>AND</u></em> if the object happens
to be putting out sound or light in the observer's direction.
Answer:
A fire hose must be able to shoot water to the top of a building 35.0 m tall ... Water enters this hose at a steady rate of 0.500 m3/s and shoots out of a round nozzle. ... I know that Flow rate=0.500 m3/s=A*V. I know the pressure needed to ... The first equation has no potential while the second has no kinetic.
Explanation:
Isn’t it a light box , mirror and / or angle measurer?
Answer:
![v_{min} \approx 17.153\,\frac{m}{s}](https://tex.z-dn.net/?f=v_%7Bmin%7D%20%5Capprox%2017.153%5C%2C%5Cfrac%7Bm%7D%7Bs%7D)
Explanation:
The roller coaster begins with maximum kinetic energy and no gravitational potential energy. The gravitational potential energy reaches its maximum when roller coaster is upside down at the top of the circle. The physical model for the roller coaster is constructed by means of the Principle of Energy Conservation:
![\frac{1}{2}\cdot m \cdot v_{min}^{2} = m\cdot g \cdot h](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%5Ccdot%20m%20%5Ccdot%20v_%7Bmin%7D%5E%7B2%7D%20%3D%20m%5Ccdot%20g%20%5Ccdot%20h)
The minimum velocity is:
![v_{min} = \sqrt{2\cdot g \cdot h}](https://tex.z-dn.net/?f=v_%7Bmin%7D%20%3D%20%5Csqrt%7B2%5Ccdot%20g%20%5Ccdot%20h%7D)
Let assume that radio of curvature is measured in meters. Hence:
![v_{min} = \sqrt{2\cdot (9.807\,\frac{m}{s^{2}} )\cdot(15\,m)}](https://tex.z-dn.net/?f=v_%7Bmin%7D%20%3D%20%5Csqrt%7B2%5Ccdot%20%289.807%5C%2C%5Cfrac%7Bm%7D%7Bs%5E%7B2%7D%7D%20%29%5Ccdot%2815%5C%2Cm%29%7D)
![v_{min} \approx 17.153\,\frac{m}{s}](https://tex.z-dn.net/?f=v_%7Bmin%7D%20%5Capprox%2017.153%5C%2C%5Cfrac%7Bm%7D%7Bs%7D)