Answer: For ideal machine efficiency = 1. Hence M.A = V. R. The V. R of an ideal machine and the practical machine is a constant or is the same for both

3 0

3 years ago

Explain why the several different types of microscopes are all neccassary?

Sphinxa [80]

Answer:

The different types of microscopes are all necessary because not all experiments require the same level of magnification. ... All microscopes allow visualization of samples that are too small to be viewed by the naked eye.

Explanation:

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7 0

3 years ago

Which front formed widespread clouds rain or snow

Karolina [17]

Answer: A cold front occurs when cold, denser air replaces the rising, less dense air mass. The reason this front brings in the rain is that as the rising warm air cools (as it rises to the cooler upper atmosphere) the moisture in it condenses into clouds that precipitate down as rain or snow.

8 0

3 years ago

Read 2 more answers

When interference occurs the only change is the_______.

allochka39001 [22]

The right answer is D, the aplitude of summaric wave.

6 0

3 years ago

Can someone help me this question ​

Can someone help me this question