the image of a mountain can be seen on the surface of calm water. what property of light is demonstrated?

Answers

Answer 1

Answer:

Answer:

It is Reflection of light from water surface

Explanation:

When light coming from the mountains incident on the stationary water surface then major proportion of light gets reflected from the surface of water and this will received by the observer eye.

We also know that when light beam gets reflected into the form of beam then it is known as regular reflection.

Here when water surface is calm then the surface is assumed to be plane and in this case the light gets reflected by the surface of water in same direction and we got a good image in the water.

So this property of image is due to reflection of light.

Answer 2

Answer: I say it's the regular reflection

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Please help me! URGENT!

If a basketball player runs 15 m in a time of 3 s, what was the runners average velocity?

Answers

There's not enough information in the question to calculate the player's velocity. But we can find his average speed.

Speed = (distance covered) / (time to cover the distance)

Speed = (15 meters) / (3 sec)

Speed = (15/3) (m/s)

Speed = 5 m/s

There's no information telling us what direction he ran, so it's not possible to say anything about his velocity. ('Velocity' is not just a big word for 'speed'. It's a different thing, and to describe it, you need to know the speed AND the direction of the motion.)

Which of Newton's motion laws BEST explains HOW a rock accelerates when it is dropped off a bridge?A.
first

B.
second

C.
third

Answers

Answer:

Explanation:

Q2. In a 4x100 mrelay race, total track length is 200m and time taken by one particular group is 50.2 s. What is
the average speed and average velocity of that group?

Answers

A " 4 x 100 m " race means that four runners each run 100 meters, for
a total of 400 meters ... very close to a quarter mile.

On a 200-meter track, each runner does halfway around the track, and
the whole team of four runners does twice around the track.

This team did the whole thing in 50.2 seconds. The average time for each runner
was 50.2/4 = 12.55 seconds.
The average speed of each runner was (400 meters)/(50.2 seconds) = 7.968 m/s .

Velocity is a speed and a direction. We have the speed, leaving only the puzzle of
what to do about the 'average' direction.

Here's a sneaky but easy way to dispense with the whole issue:
Define the average velocity (vector) as (total displacement vector)/(total time).

Since the fourth runner finished in exactly the same spot as the first runner
began, the total displacement is zero, and therefore so is the average velocity.

What happened to the sound made by the tuning fork hit the prongs harder

Answers

the sound waves and vibration will increase causing the sound to be louder. just like if you strum a guitar lightly it is a soft sound, if you strum it hard it will be loud and play not so smootly

The method of heat transfer that plays a central role in transferring heat energy within the atmosphere and the ocean is A. convection. B. radiation. C. conduction. D. reflection.

Answers

Convection is process of transferring heat from one place to the other. Warm air rises that is why heat from water will evaporate and will transfer to cooler atmosphere through this process. In convection, cooler places are replaced by warm air due because cool air sinks and warm air will replace

The answer is A, convection

A graduated cylinder is filled to an initial volume of 12.7 ml. A rock Is dropped into the graduated cylinder. The final volume of the graduated cylinder is 18.2ml. What is the Rocks volume in both ml and cm3? What method was used to determine this?

Answers

Answer:

V = 5.5 mL

Explanation:

The volume filled in the graduated cylinder is 12.7 mL

now when a stone is dropped into the cylinder then the volume of liquid is raised to final level of 18.2 mL

so as per the theory of given by Archimidies we can say that the volume of the object is exactly same as the volume displaced by the object

So here the volume displaced by the object is given as

$V_(displaced) = V_f - V_i$

$V_(displaced) = 18.2 mL - 12.7 mL$

$V_(displaced) = 5.5 mL$

so the volume of the object is given as

$V = V_(displaced)$

$V = 5.5 mL$

First of all, ml and cm^3 are equal. The volume of the rock is 5.5 ml. This is found by subtracting the volume of just the water from the combined volume of the rock and the water leaving you with just the volume of the rock. This is method is using water displacement.

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