3 years ago

Which device transforms electrical energy to mechanical energy?

Physics

2 answers:

enot [183]3 years ago

8 0

The correct answer is A. a fan

yuradex [85]3 years ago

4 0

B is the answer....an iron

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Froghopper insects have a typical mass of around 12.5 mg and can jump to a height of 42.3 cm. The takeoff velocity is achieved a

Maksim231197 [3]

Answer:

2065.005 m/s²

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

g = Acceleration due to gravity = 9.81 m/s²

$v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{v^2-0^2}{2\times h}\\\Rightarrow v^2=2ah\ m/s$

Now H-h = 42.3 - 0.2 = 42.1 cm = 0.421 m

The final velocity will be the initial velocity

$v^2-u^2=2as\\\Rightarrow 0^2-u^2=2gs\\\Rightarrow -2ah=2\times g(H-h)\\\Rightarrow -2a0.002=2\times g0.421\\\Rightarrow a=-\frac{0.421\times -9.81}{0.002}\\\Rightarrow a=2065.005\ m/s^2$

Acceleration of the frog is 2065.005 m/s²

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3 years ago

Where do you find cations on the periodic table

saw5 [17]

Answer:

Explanation:

The electronic configuration of many ions is that if a closes noble gas to them in a periodic table.

An Anion is a ion that has gained one or more electron, acquiring a negative charge.

A Cation is a ion that has lost one or more electron, gaining a positive charge.

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3 years ago

Average distance of 160.0 cm. Its average time was 5.74 seconds. What is its average speed?

Gre4nikov [31]

Your answer is .279m/s

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3 years ago

At left A red ball in a box with arrows pointing away from the ball in all directions. In the middle, a blue ball in a box with

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Answer:

first one is b 2nd one is a 3rd is c and the 4th one is c also

Explanation: have a nice day

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A jet can travel at 400 minutes per second how far will it travel at this speed in 3 seconds

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400 * 3 = 1200
A jet can travel 1200 minutes for 3 seconds

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