2 years ago

How do simple machines make it easier to move an object?

Physics

1 answer:

natima [27]2 years ago

5 0

Answer:

by Multiply Force,change direction and speed multiply

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iragen [17]

I believe it’s 60km/h

I divided the total distance (120 km) by the time it took to get there (2h) to get this.

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2 years ago

Light shines through a single slit whose width is 5.7 x 10-4 m. A diffraction pattern is formed on a flat screen located 4.0 m a

lilavasa [31]

Answer:

$\lambda = 570\ nm$

Explanation:

Given,

Width of slit, W = 5.7 x 10⁻⁴ m

Distance between central bright fringe, L = 4 m

distance between central bright fringe and first dark fringe, y = 4 mm

Diffraction angle

$tan \theta = \dfrac{y}{L}$

$tan \theta = \dfrac{4}{4\times 10^3}$

$\theta = 0.0572$

Now.

$W sin \theta = m \lambda$

m = 1

$5.7 \times 10^{-4} \times sin (0.0572) = 1 \times \lambda$

$\lambda = 569.99 \times 10^{-9}\ m$

$\lambda = 570\ nm$

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3 years ago

What is the mean of 22, 72, 79, 72, and 70

Nataly_w [17]

Answer:

Explanation:

You first have to add all the numbers together.

22+72+79+72+70 = 315

You divide the total by the amount of numbers (5)

315/5 = 63

The mean is 63

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2 years ago

PLEASE HELP! <br><br> how am i supposed to label a graph using the points from the protractor?

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Explanation:

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2 years ago

The wetter the surface, the friction

allochka39001 [22]

Answer: Water can either increase or decrease the friction between surfaces.

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3 years ago