4 years ago

What is the force applied by the ground called? A. applied force B. friction C. gravity

Physics

1 answer:

Evgesh-ka [11]4 years ago

7 0

Answer:

gravity i think hope this helps

Explanation:

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Your mother asks you to carry a load of wood to the fireplace and lower it to the hearth. In doing this you have used your arms

Evgesh-ka [11]

Answer: The correct answer is the weight of the wood.

Explanation:

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8 0

3 years ago

Read 2 more answers

Which stars has the coolest surface temperature?

Delicious77 [7]

Answer:

Red Dwarf

Explanation:

Red Dwarf have low temperature having range from 2500 K to 4000 K.
They are red in appearance due to their low temperature.
Proxima Centauri is a red Dwarf.
They have low luminosity.
They have small mass and have high density.

5 0

4 years ago

What is the maximum number of lines per centimeter a diffraction grating can have and produce a complete first-order spectrum fo

Vitek1552 [10]

Answer:

1315789.47368 lines/m

Explanation:

m = Order = 1

$sin\theta$ = 1 For maximum condition

$\lambda$ = Wavelength = 760 nm maximum

From Rayleigh criteria we have the expression for the gap

$d=\dfrac{m\lambda}{sin\theta}\\\Rightarrow d=\dfrac{1\times 760}{1}\\\Rightarrow d=760\ nm$

The number of lines is the reciprocal of the slit distance

$n=\dfrac{1}{d}\\\Rightarrow n=\dfrac{1}{760\times 10^{-9}}\\\Rightarrow n=1315789.47368\ /m$

The number of lines is 1315789.47368 per meter

7 0

3 years ago

If the forces are balanced what is the resulting acceleration

icang [17]

There is no acceleration when an object has balanced forces on it. It either moves at a constant velocity or doesn't move at all

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3 years ago

Is a decrease in velocity considered an acceleration

Dovator [93]

Yes an change in velocity either a decrease or increase is an acceleration.

5 0

3 years ago