Answer:
C
Explanation:
It would have to be a bus with a ramp.
Think about it, an inclined slope is kinda like a right triangle, and its a ramp, ramps go down :)
Fir is radiant, log is chemical, sky is motion
Answer:
divide the velocity of the wave by the wavelength. Write your answer in Hertz, or Hz, which is the unit for frequency. If you need to calculate the frequency from the time it takes to complete a wave cycle, or T, the frequency will be the inverse of the time, or 1 divided by T.
Explanation:
Answer:
Action - Pulling up the train.
Reaction - Friction on the locomotive
Explanation:
Locomotive is pulling the train upwards ,
Which is the action force applied by the locomotive,
As a reaction locomotive will be pulled by the train which is the reaction of pulling
Now, considering it as a action on locomotive , friction force will act on it as a reaction upwards which will result to move it upwards.
For train action is pulling up by locomotive and reaction will be friction acting on it downwards.
Answer:
Using the new cylinder the heat rate between the reservoirs would be 50 W
Explanation:
- Conduction could be described by the Law of Fourierin the form: where is the rate of heat transferred by conduction, is the thermal conductivity of the material, and are the temperatures of each heat deposit, is the cross area to the flow of heat, and is the distance that the flow of heat has to go.
- For the original cylinder the Fourier's law would be: , and if , then the expression would be: where is the diameter of the original cylinder, and is the length of the original cylinder.
- For the new cylinder, in the same fashion that for the first, Fourier's Law would be: ,where is the heat rate in the second case, and are the new diameter and length.
- But, and , substituting in the expression for : .
- Rearranging: .
- In the last declaration of , it could be noted that the expressión inside the parenthesis is actually , then: .
- <u>It should be noted, that the temperatures in the hot and cold reservoirs never change.</u>