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3 years ago

What does the equation n =Pout/Pin mean?

2 answers:

6 0

N= energy efficiency pout means output and pin means input the reason this would show efficiency is because your output should be greater then your input and because depending on how small your number is after your division will tell you how efficient it is you want a big number.

Licemer1 [7]3 years ago

6 0

Answer:

Power efficiency

Explanation:

The power efficiency tells us how much efficient is a process, the bigger value we can obtain is 1, that means that we are not wasting energy, in real life, it is always below 1 because some energy is wasted on heat or other undesired process. that's why the output power is always lower than the input power.

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What influences the strength of an electric field?

Slav-nsk [51]

Answer:

Explanation:

The charge alters that space, causing any other charged object that enters the space to be affected by this field. The strength of the electric field is dependent upon how charged the object creating the field is and upon the distance of separation from the charged object.

4 0

3 years ago

Lukalu is rappelling off a cliff. The parametric equations that describe her horizontal and vertical position as a function of t

andre [41]

Answer:

2.5 s, 5 m

Explanation:

The equations for the horizontal and vertical position of Lukalu are:

$x(t) = 8t\\y(t) = -16t^2 + 100$

we can find the time it takes her to reach the ground by requiring that the vertical position becomes zero:

y(t) = 0

So we find:

$0=-16t^2 +100\\16t^2 = 100\\t=\sqrt{\frac{100}{16}}=2.5 s$

The horizontal distance of Lukalu instead will be given by the equation for the horizontal position, substituting t = 2.5 s:

$x=8t = 8 \cdot 2.5 s =5 m$

4 0

3 years ago

PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (40pts)

Artyom0805 [142]

A) Speed..............

7 0

2 years ago

Read 2 more answers

Do the data for the first part of the experiment support or

mrs_skeptik [129]

Answer:

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3 years ago

A garbage truck has a mass of 2100kg it starts from rest and travels 75m in 15 seconds the truck uniformly accelerates the entir

Sedbober [7]

F=ma

Velocity is Distance over time so Vf = 75/15 = 5m/s

Find acceleration V=Vo+at. plugging in the values you know, you get
0.33m/s^2

F=(2100)(0.33)=693N

3 0

3 years ago