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3 years ago

What properties are different between blue light and red light?

1 answer:

3 0

Blue light has a shorter wavelength than does red light, and since it travels at the same speed (in vacuum) as red light, has a higher frequency. This gives it a higher energy per photon.

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What was your train of thought as you navigated the picture of the candle?

defon

Answer:

Where is the picture

Explanation:

WHERE IS THE PICTURE

4 0

3 years ago

Abdou was explaining to a classmate that graphite is a good lubricant because it is bonded in layers that easily slip over each

lesantik [10]

Answer: The correct image is the one with 5 rows, and 9 hexagons in each row.

Explanation:

Just took the quiz

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3 years ago

Read 2 more answers

During their physics field trip to the amusement park, Tyler and Maria took a rider on the Whirligig. The Whirligig ride consist

blondinia [14]

Answer:

Speed = 7.04434 m/s

Explanation:

Given that:

The radius of the circle = 6.5 m

The expression for the calculation of circumference is shown below as:

$Circumference=2\times \pi \times radius$

Thus,

$Circumference=2\times \frac{22}{7} \times 6.5\ m=40.8572\ m$

Time taken = 5.8 seconds.

Thus, The speed is:

$Speed=\frac{Circumference}{Time\ Taken}$

So,

$Speed=\frac{40.8572}{5.8}\ m/s$

<u>Speed = 7.04434 m/s</u>

8 0

4 years ago

Read 2 more answers

If you push a book against a wall hard enough, it will not slide down even though gravity is pulling it. Use what you know about

Rashid [163]

The frictional force is too much compared to the gravitational force

Explanation:

This is because of the great amount of frictional force between the book and the wall.

Also, the force of gravity on the book is not high enough to cause motion of the book to slide downs.

Frictional force is a force that opposes motion.

For the book to slide down, it must overcome the force of friction acting on it opposite to the direction of gravity.
According to newton's first law 'a body will remain in its state of rest or uniform motion unless acted upon by an external force'.
Assuming the external force is gravitational force, clearly we see that the force is less than the frictional exerted on the book by pinning it to the wall.
This frictional force is a static friction that is on a body at rest, it must be overcome by a larger force before motion takes place.

Fr > fg

Fr is the frictional force

fg is the gravitational force

learn more:

Newton laws brainly.com/question/11411375

#learnwithBrainly

3 0

4 years ago

What is Pressure ? Explain well

Andreyy89

Hi Pupil Here's Your Answer ::

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Pressure is defined as the force acting perpendicular on an unit area of the surface.

OR

The thrust per unit area is called Pressure.

let us see, on what factors the pressure depends?

Take a pin having a pointed end and a nail having blunt end. Press then against a cardboard by applying the same force. We find that the pin penetrates deep into the cardboard then the nail. In this case, force acting on two points of the cardboard is same but the area under the tip of the Pin is less than under the tip of the nail.

The effect of the forces of the scene magnitudes on the different area is different.

Conclusions : Pressure acting on the surface is inversely proportional to the area of the surface on which force acts.

⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅

Hope this helps

4 0

3 years ago