What occurs when parallel rays of light hit a rough or bumby surface

Answers

Answer 1

Answer: When parallel rays of light hit a rough or bumpy surface, there will be diffused reflection. Meaning, the light that bounces after it hits a rough or bumpy surface is not parallel anymore and cannot form an image. The answer to this question is 'diffused reflection'.

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If a material is ductile, it is most likely a ____________ . Question 24 options: A. Metalloid B. Noble Gas C. Non-Metal D. Metal E. Ion

Answers

Answer: Option (A) is the correct answer.

Explanation:

It is known that metals are malleable and ductile. Whereas non-metals are neither malleable nor ductile.

On the other hand, metalloids are the elements which contain properties similar to both metals and non-metals.

Therefore, if a material is ductile, it is most likely a metalloid because it is not necessary that ductility is a property shown by metals only.

Wherease like non-metals, noble gases are also neither malleable nor ductile.

A. Metalloid this is your answer plz click brainly-ist

If a step-up transformer has a primary coil with 15 turns, how many turns would be required in the secondary coil in order to increase the voltage from 80 volts to 160 volts? A. 8 turns B. 30 turns C. 80 turns D. 160 turns

Answers

Answer:

$N_2=30turns$

So option (b) will be correct option

Explanation:

We have given that there is a step up transformer in which number of turns in primary coil is 15

That is, $N_1=15$

Primary voltage $V_1=80volt$ , and secondary voltage $V_2=160volt$

We have to find the number of turns in the secondary \

We know that for the transformer

$(N_1)/(N_2)=(V_1)/(V_2)$

$(15)/(N_2)=(80)/(160)$

$N_2=30turns$

So option (b) will be correct option

This theory suggests that for every big bang, there is a big crunch.oscillating universe theory
inflation theory
steady state theory
big bang theory

Answers

Answer: oscillating universe theory

Explanation:

The oscillating universe theory is a modification of the famous big bang theory.
According to this theory, there are successive cycles of expansion and contraction that occurs in the universe and due to the contraction, the universe gets confined into a very small volume which has a large density.
When the universe gets confined in such a way then, it is said that a 'bounce' will occur and, it would thus oscillate between the big bang and the big crunch.
Thus, this theory states that for every big bang there is a big crunch.

Final answer:

The Oscillating Universe Theory suggests that for every big bang there is a big crunch, imagining the universe as undergoing endless cycles of expansion and contraction.

Explanation:

The theory that suggests that for every big bang, there is a big crunch is known as the oscillating universe theory. This theory proposes that the universe undergoes endless cycles of expansion (Big Bang) and contraction (Big Crunch). It's like a ongoing cosmic heartbeat, where our universe alternatively expands and contracts.

The other three theories mentioned, the inflation theory, the steady state theory, and the big bang theory, each have their own illustrations of the universe's formation. None of them, however, necessarily involve the concept of a big crunch following a big bang.

Learn more about Oscillating Universe Theory here:

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A boy cycles a distance of 960 m from home to school in 6 minutes. Calculate his average speed for the journey. Write your answer in m/s.

Answers

The average speed of the boy was 2,67m/s.

The average speed is found when we divide the distance traveled (Δx) by the travel time (Δt).

The formula is:

$\Huge\boldsymbol{V_(av)=(\Delta x)/(\Delta t)}$

Solving:

Data:

Distance: 960m

Time: 6min ⇒ (6 · 60) ⇒360s

We have:

$\LARGE\text{$V_(av)=(960)/(360)$}\n\n\n\n\Huge\boldsymbol{V_(av)\approx2,67m/s}$

The average speed of the boy for his journey is approximately2,67m/s.

_________

Know more:

About speed:

Hope this helps!

To calculate the average speed of the boy's journey, you can use the formula:

Average Speed (in m/s) = Distance (in meters) / Time (in seconds)

First, you need to convert the time from minutes to seconds because 1 minute equals 60 seconds:

6 minutes = 6 * 60 seconds = 360 seconds

Now, you can calculate the average speed:

Average Speed = 960 meters / 360 seconds = 2.67 m/s

So, the boy's average speed for the journey is approximately 2.67 meters per second.

For an isothermal process, the work done by or on a system of ideal gas is equal to the change in what? A. The work done is equal to the change in internal energy.
B.The work done is equal to the change in heat energy.
C.The work done is equal to change in entropy.
D.The work done is equal to the change in pressure.

Answers

For an isothermal process, the work done by or on a system of ideal gas is equal to the change in heat energy. The correct option is B.

What is isothermal process?

The process in which the temperature remains constant and other physical quantities are variable, is called the isothermal process.

From the first law of thermodynamics, the work done is the difference between heat supplied and change in internal energy of the system.

W = ΔQ - ΔU

For isothermal process, change in internal energy will be zero.

So, work done is equal to the change in heat energy.

Thus, the correct option is B.

Learn more about isothermal process.

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the work done is equal to the change in heat energy

When a refrigerant condenses, the surrounding air is _____.a) condensed

b) cooled

c) warmed

d) unchanged

Answers

When a refrigerant condenses, the surrounding air is warmed. The correct option is c.

What is a refrigerant?

The refrigerant is a working fluid in a refrigerator which is capable of changes of phase at low temperatures.

A refrigerator undergoes a vapor compression refrigeration cycle using the working fluid.

When a refrigerant condenses, the surrounding air is warmed.

Thus, the correct option is c.

Learn more about refrigerant

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When a refrigerant condenses, the surrounding air is "Warmed"

In short, Your Answer would be Option C

Hope this helps!

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An early submersible craft for deep-sea exploration was raised and lowered by a cable from a ship. When the craft was stationary, the tension in the cable was 7000 N {\rm N}. When the craft was lowered or raised at a steady rate, the motion through the water added an 1800 N {\rm N} drag force.Part AWhat was the tension in the cable when the craft was being lowered to the seafloor?Express your answer to two significant figures and include the appropriate units.Part BWhat was the tension in the cable when the craft was being raised from the seafloor?Express your answer to two significant figures and include the appropriate units.

classify the following substances as acidic, basic, or neutral: a. a soapy solution, pH = 9 b. a sour liquid, pH = 5 c. a solution with four times as many hydronium ions as hydroxide ions

In the diagram, the liquid is vaporizing at which point? Question 5 options: A B C D E

High intensity sounds are perceived as relatively loud sounds. The sound waves which are most intense and perceived as loud sounds are those which have a ______ . Identify the one characteristic which is unique of such sound waves.