diamond sparkles in dim light give reason

Answers

Answer 1

Answer: As the light moves through the diamond, it is scattered and fractured, creating the sparkle that diamonds are known for. This is the refraction. ... This refraction and dispersion also creates natural light and dark areas in the refracted light, depending on where the light hits along the planes of the diamond

Explanation:


Related Questions

Looking at the graph below, what is the average velocity from 1 to 6 seconds? Explain how you found it (at least 4 sentences). *

Answers

Answer:

3 m/s

Explanation:

v= s/t

v= 9/6

v=3 m/s

Another engineer is running a series of experiments with hydraulic systems. If she doubles the area of the input piston, what happens to the amount of pressure transmitted by the system?

Answers

Answer:

The pressure remains the same.

F = P * A  the amount of force transmitted would double if only the input area is changed. Pressure is the same at all points in the system.

Why are there more fat, shaggy bison in Time 3 than in Time 1?
A. The snowy winter made the smaller, smooth bison grow longer
fur. The next year, all the bison grew longer fur and got fat.
B. The small, smooth bison moved to a warmer place for winter.
The next year, most of the bison were the fat and shaggy ones
that didn't move away.
C. After the snowy winter, the smaller, smooth bison started to have
shaggy offspring. The shaggy offspring do better in cold weather.
D. During the snowy winter, the fat, shaggy bison survived while
most of the other bison died. The next year, the shaggy bison
produced mostly shaggy offspring.

Answers

Answer:

I believe the answer is D.

Explanation:

It would have been helpful if there had been more information included with this problem, but it would make sense that the answer is D.  If there is a winter between time 1 and 3, bison that are not well-suited to the weather, (skinny and smooth) will die off, and only the ones well-suited to winter weather will survive to produce offspring.

During the snowy winter, the fat, shaggy bison survived while most of the other bison died. The next year, the shaggy bison produced mostly shaggy offspring. So, option D.

What is meant by adaptation ?

An organism, such as a plant or animal, can acquire any heritable characteristic that aids in its ability to survive and procreate in its environment. This is known as adaptation.

Here,

A bison has a summer coat that is lighter in weight and lighter in colour than its shaggy, long, dark-brown winter coat.

In comparison to female bison, men are noticeably bigger and heavier. Wood bison typically fluctuate in size from larger to smaller, compared to plains bison.

When the grassland is hot and there is no shade, the bison's short, thinner hair at the back helps keep it cool. In times of heavy snow and wind, bison move through the landscape while facing the elements. This is made feasible by the thick coat. On chilly days, the coat's dark brown to nearly black colour aids to absorb solar heat. Similar to dogs, bison get a heavier winter coat in the autumn and maintain it into April. By the end of spring, they have shed and grown a new, lighter coat.

Hence,

During the snowy winter, the fat, shaggy bison survived while most of the other bison died. The next year, the shaggy bison produced mostly shaggy offspring. So, option D.

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What is the change in internal energy if 60J of heat are released from a system and 20J of work is done on the system? Use U=Q-W
A. 80J
B. -80J
C. -40J
D. 40J

Answers

D because 60-20= 40J

Why is gravitational force and gravity not the same thing?

Answers

One is force other is quantity

2. What is the mass of an object if it accelerates at 3 m/s2 and has a force of 1 N?

Answers

Answer:

hey what is this 2 in between the question

please tell

HELP HELP HELP! Brainiest to the correct answer.

A battery moves 150c of charge through a potential difference of 12v in 1 minute. Calculate the power developed in the battery.

Answers

Answer:

V = W = 12 J/C * 150 C = 1800 J      work in moving 150 C of charge

P = W / t = 1800 J / 60 s  = 30 watts

Answer:

30 Watts

Explanation:

We're provided with the following information:

Amount of Charge flown (Q) = 150 CPotential Difference (V) = 12 VTime (T) = 1 min

= 60 seconds

Current:

Current is the rate of flow of charge ,i. e., The amount of charge flowing "per second":

[tex]\boxed{\mathfrak{Current(I)=\frac{Charge(Q)}{Time(T)} }}[/tex]

We have:

Charge flown (Q) = 150 CTime (T) = 60 seconds

Finding the current flown using the above mentioned formula:

[tex]\implies \mathsf{I=\frac{150}{60} }[/tex]

[tex]\implies \mathsf{I=\frac{5}{2} }[/tex]

=> I = 2.5 A

A(Amperes) is the SI unit of Current

Relation between Power, Voltage and Current:

We've a relation between Power, Current and Voltage, derived with the help of  "Joule's Law of Heating", and that is:

[tex]\boxed{\mathfrak{Power(P)=Voltage(V) \times Current(I)}}[/tex]

We can finally find Power, Since we have:

Current (I) = 2.5 AVoltage (V) = 12 V

=> P = 12 × 2.5

=> P = 30 W

W, Watts, is the Si unit of Power

You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.5 m above the ground, and it is moving at a speed of 7.0 m/s.

(a) How much time does it take for the tennis ball to reach its maximum height? (s)

(b) What is the maximum height above the ground that the tennis ball reaches? (m)

(c) When the tennis ball is at a height of 2.4 m above the ground, what is its speed? (m/s)

Answers

a). 1.2 s

b). 3.81 m

c) v= 6.8 m/s

d) v= 27.05 m/s

What is speed?

Speed is define as the distance per unit time. It is also define as how fast an object is  moving.

According to the question:

Height = 1.5 m , speed = 7.0 m/s.

a)By using 1st equation of motion

[tex]V = V_{0} + g*t.\\V = 0 \\V_{0} = 7.0 m/s.g = -9.8 m/s^2\\0 = 7 + (-9.8 m/s^2)*t\\t = 1.2 s[/tex]

b.

[tex]h = 1.5 + V_{0} *t + 0.5g*t^2\\V_{0} = 7.8 m/s\\t = 1.2s , g = -9.8 m/s^2\\h = 3.81 m[/tex]

c.

[tex]V^2 = V_{0} ^2 + 2g*d\\V_{0} = 7.8 m/s\\g= -9.8 m/s^2.\\d= 2.2-1.5 = 0.7 m\\V = 6.8 m/s[/tex]

d.

[tex]V^2 = V_{0} ^2 + 2g*h\\V_{0} = 0\\g = +9.8 m/s^2.\\h = 6.8 m\\V = 27.05 m/s[/tex]

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A current of 0.8 A flows through the motor for 3 minutes. Calculate the total charge in this time.

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The given terms are :

Current = 0.8 Amperes

Time = 3 minutes = 3 × 60 = 180 seconds

we know that,

[tex]current = \dfrac{charge}{time} [/tex]

now, let's solve for charge (q) :

[tex]0.8 = \dfrac{q}{180} [/tex]

[tex]q = 180 \times 0.8[/tex]

[tex]q = 144 \: [/tex]

Total Charge (q) = 144 Coulombs

1. If a reaction starts with 5 atoms of Hydrogen, how many will there be
after they react with 10 atoms of Oxygen?
atoms of Hydrogen
2. The substances you have before a chemical reaction are called the
3. The substances you have after the chemical reaction are called the
4. What is the Law of Conservation of Mass?

Please help!

Answers

Answer:

you will have 20 hydrogin atomes

Explanation:

Which statement about the universality of gravity is untrue?

Answers

Answer: The gravitational force between two objects depends only on their masses.

Explanation:

When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.

Therefore, gravity relies on mass and distance, not just mass.

which form of energy in the circuit lights the bulb.?​

Answers

Answer:

electric energy.......

6.) What force would evetually cause the ball to come to a stop after leaving the ramp​

Answers

[tex]\colorbox{aqua} A\colorbox{aqua} N\colorbox{aqua} S\colorbox{aqua} W\colorbox{aqua} E\colorbox{aqua} R\colorbox{aqua} S[/tex]

Forces of inertia

d) Why is it so difficult to get accurate data for these objects?

Answers

Answer: For what objects? And what data?

Explanation:

2. A mixing bowl has a mass of 0.5kg. A baker adds 0.0002m of water to the mixing bowl until
the total mass of the bowl and water is 0.7kg.
a) Calculate the mass of the water.
mass = wounce
densinate
mass =

Answers

Answer:

mass of water is 0.2kg

Explanation:

mass of water is tota mass of bowl minus mass of bowl

__________ is the process of sediment being placed in a new location
When sediment is carried away, this process is called ________

please help :

Answers

Answer:

deposition and erosion

Answer:

1:  Deposition

--
2: Erosion

Explanation:
Hope this helps! <3

Let G be the universal gravitational constant and mp be the mass of the planet a satellite is orbiting. Which equation could be used to find the velocity of the satellite if it is placed in a low Earth orbit?

Let G be the universal gravitational constant and mp be the mass of the planet a satellite is orbiting. Which equation could be used to find the velocity of the satellite if it is placed in a low Earth orbit?

Answers

The equation that could be used to find the velocity of the satellite if it is placed in a low Earth orbit is [tex]v = \sqrt{\frac{Gm_p}{200 \ km} }[/tex].

The given parameters;

mass of the planet, = [tex]m_p[/tex]

A low Earth orbit is an orbit around the Earth with altitude in the range of 250 km and 2000 km.

The gravitational potential or the work done in bringing the satellite to the low Earth orbit is given as;

[tex]U = \frac{GMm_p}{R} \\\\[/tex]

where;

M is the mass of the EarthR is the altitude of the low Earth orbit

let the value of R = 400 km

Note: any value between 250 km and 2000 km can be used BUT 400 km is the only value within this range that can be found in the given options as you will see at the end of the solution.

[tex]U = \frac{GMm_p}{400 \ km}[/tex]

The kinetic energy of the satellite at the low Earth orbit is equal to the gravitational potential energy due to the altitude of the low Earth orbit.

[tex]K.E = U\\\\\frac{1}{2} Mv^2 = \frac{GMm_p}{400 \ km} \\\\v^2 = \frac{2Gm_p}{400 \ km}\\\\v^2 = \frac{Gm_p}{200 \ km}\\\\v = \sqrt{\frac{Gm_p}{200 \ km}}[/tex]

Thus, the equation that could be used to find the velocity of the satellite if it is placed in a low Earth orbit is [tex]v = \sqrt{\frac{Gm_p}{200 \ km} }[/tex].

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The bungee cord has an unstretched length of 20.0 m. The mass of the student is 50.0 kg. The gravitational field strength is 9.8 N/kg. ​

Answers

Answer:

a) g.p.e.=mass × gravitational field strength × height

b) Eᵖ= 50 × 9.8 × 20

9800 (J)

A cat jumps from a balcony. About how fast is the cat moving after 1.5 s?

Answers

The velocity of the cat is 14.7 m/s. Or the cat is moving with the speed of 14.7 m/s after jumping from the balcony.

Which one of these statements about Usain Bolt running 100 meters in 10 seconds is true?
A. Every second he ran exactly 10 meters
B. He goes fastest at the end of the race
C. He can't go 10 meters in the first second, so he will have to go faster than 10m/s later
D. He won the gold medal for his home country, the USA!

Answers

C or B; these make the most sense

when is/was gravitational contraction an important energy generation mechanism for the sun?

Answers

Answer: It was important when the Sun was forming from a shrinking interstellar cloud of gas.

Hope this helps!!

This process is thought to have been the main source of energy for the sun in the early stages of its development before nuclear fusion reactions in the sun's core became the dominant source of energy.

What is Gravitational contraction?

Gravitational contraction is the process by which a celestial body, such as a star, generates energy through the release of gravitational potential energy as it contracts and becomes denser.

Here,
This process is thought to have been the main source of energy for the sun in the early stages of its development before nuclear fusion reactions in the sun's core became the dominant source of energy.

As the sun contracted and became denser, the temperature and pressure in its core increased, leading to the initiation of nuclear fusion reactions. These reactions transformed hydrogen into helium and released a tremendous amount of energy in the form of light and heat, which has sustained the sun for billions of years.

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How does the motor neuron help when dribbling a basketball?

Answers

Answer: Motor neurons of the spinal cord are part of the central nervous system (CNS) and connect to muscles, glands and organs throughout the body. These neurons transmit impulses from the spinal cord to skeletal and smooth muscles (such as those in your stomach), and so directly control all of our muscle movements. so they are resposnible for giving the message to your muscles to move your hand to dribble the ball.

Explanation:

How many plants must be on the new settlement to provide enough oxygen for 20 adult humans to survive

Answers

Answer:

nasaan po yung problem?

Explanation:

picture kailangan kooo

(i) A stone is thrown vertically upwards with an initial velocity of 60ms. Find
a) the maximum height attained by the stone
b) the time taken to reach the maximum height (Take g = 10 ms?)
c) the net displacement if the stone returns back to point from where it was thrown up.​

Answers

Answer:

i) 180m ii) 6sec ii)180m

Explanation:

i) Hmax = U²/2g

= 60²/20

= 3600/20= 180m

ii). Tmax= U/g

= 60/10= 6sec

iii). X= ut²+ 1/2gt²

since U is 0,then ut=0

X=0+ 1/2×10×6²

X=5×36= 180m

hope its clear??

what are five examples of things melting?​

Answers

ice cube to water, butter in pan, plastic when burned, candles, popsicles

ice cream melting in the sun
ice melting
a candle melting
snow melting cause of heat
butter melting in a pan

Calculate the tension on the rope.
A. 57.89 N
B. 32.73 N
C. 69.84 N
D. 12.55 N

Answers

Hi there!

[tex]\large\boxed{\text{B. 32.73N}}[/tex]

To calculate the tension, we must calculate the acceleration of the system.

Begin with a summation of forces:

∑F = -M₁gsinФ + T - T + M₂g

Simplify and solve for acceleration: (Tensions cancel out)

[tex]a = \frac{-M_1gsin\theta + T - T + M_2g}{M_1+M_2}[/tex]

Plug in values. Let g = 10 m/s²

[tex]a = \frac{-3(10)(sin30)+8(10)}{3+8} = 5.91 m/s^{2}[/tex]

Now, to find tension, let's sum up the forces acting on ONE block. For simplicity, we can look at the hanging block:

∑F = -T + W

ma = -T + W

Rearrange to solve for T:

T = W - ma

We know the acceleration, so plug in the values:

T = (8)(10) - (8)(5.91) = 32.73 N

WILL GET BRAINLEST Which statement is the best example of how society affects the use of technology? A. Larger vehicles that use gasoline release more carbon dioxide than smaller gasoline-powered cars. B. Researchers are developing solar-powered cars that can travel long distances. C. People who make a lot of money tend to buy new cars with the most modern features. D. People who sell cars make more money when the supply of new cars is low.​

Answers

Answer:

Hey there

It says "use of technology" so let's get rid of option B because that talks of development. Now let's get rid of A because we are ask "how society affects the use of technology", not technology affects things".

We are left with C and D. C sounds the most plausible because it is about how "sociaty affects the use of money". D is not right because it talks about how people sell cars.

You go skydiving in the upper atmosphere and you want to deploy your parachute
when you reach the speed of sound, 343 m/s. How many seconds should you wait after
stepping out of the plane before deploying your chute? Ignore air friction.

Answers

You should wait 25 seconds

explain the relationship between fluid pressure and buoyant force

Answers

Answer:        The buoyant force is a result of pressure exerted by the fluid. The fluid pushes on all sides of an immersed object, but as pressure increases with depth, the push is stronger on the bottom surface of the object than in the top (as seen in ).

Explanation:

Help me to solve the question

Answers

Answer:

https://brainly.com/question/24997963 this will help you. You need to sq rt the added values then divide a+b by the square value. Keeping anything thats negative negative if negative is answer and set to = cos theta. then convert from cos theta = 1 cos will = 0. But if cos theta = decimal then ensure its positive number and that's your answer. Formula a+b/ sqrt a+b

Explanation:

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