Diamonds have a score of 10 on the Mohs scale. Therefore, they are used in grinding belts to buff and smooth other materials. What physical property is demonstrated by this? brainly

Answers

Answer 1

Answer:

Hardness

Explanation:

It has a score of 10 on the Mohs scale of HARDNESS


Related Questions

What stage of mitosis does mutations occur?!

Answers

Answer:

if it is a gene mutation then it is during the S phase, and if it is a chromosome mutation, then during metaphase or anaphase.

Explanation: I think it happens in the interphase

When a mutation occurs in mitosis, stage of Mitosis is interphase.

What is mutation?

Mutation that occurs in mitosis typically causes tumor.

Genetic mutations occur during the S phase of the cell cycle i.e during interphase before mitosis begins. When DNA is replicated, error would cause a mutation in the genetic code. Chromosomal nondisjunction denotes the failure of replicated chromosomes to separate causing extra or missing chromosomes in the daughter cells to occur. This mutation can occur during mitosis.

Thus, When a mutation occurs in mitosis, stage of Mitosis is interphase.

Learn more about mutation.

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what do waves create

Answers

Answer:

Waves transmit energy, not water, and are commonly caused by the wind as it blows across the ocean, lakes, and rivers. Waves caused by the gravitational pull of the moon and the sun are called tides.

Explanation:

Answer:

Waves are created by energy passing through water, causing it to move in a circular motion. However, water does not actually travel in waves. Waves transmit energy, not water, across the ocean and if not obstructed by anything, they have the potential to travel across an entire ocean basin. Waves are most commonly caused by wind. I hope this helped!

• The Law of Conservation of Energy states that matter cannot be created or destroyed. So
why do people say that we need to conserve energy? (5pts)

Answers

Because energy itself cannot be created nor destroyed however an energy source can be depleted. For example solar power. When it is sunny the solar energy powers a house for example. However when it is cloudy the energy from the sun gets depleted.

Regarding Newton's 3rd Law, do we always see an equal effect on each object? Aka, are both objects always affected the same? Why so?

Answers

Answer:

not always ot depends mostly on the mass of each object and how the collode

In addition to hot surface temperatures, which characteristic makes mercy different from earth

Answers

Answer:

has no air on it and no animals or plants live there.

21. The speed of light is approximately 3.00 x 108 m/s. What is the speed of light in miles per hr?

Answers

Answer:

6.7*10^8 mi/hr

Explanation:

(3*10^8 m)/1s * (3600 s)/ 1 hr * (1 mi)/ 1609 m

6.7*10^8 mi/hr

If you fire a gun horizontally, and at the same time drop a bullet/slug from the same height, what will happen?

Answers

Answer:

There you have it. The y-component of air resistance for the fired bullet still depends on the fired speed of the bullet (since it is proportional to v2). A fired bullet (with air resistance) does not hit the ground at the same time as a dropped bullet.

Explanation:

hope this helped ✨

Which is a sedimentary rock?
A: cools down
B: has large crystals
C: forms in layers
D: is formed from pressure and heat
ANSWER ASAP!!!

Answers

Answer:

d. is formed from pressure and heat

Explanation:

it is formed from hot magam

A hiker walks 11 km due north from camp and then turns and walks 11 km due east. What is the magnitude of the displacement (on a straight line) of the hiker from the camp?

Answers

Answer:

16 km

Explanation:

Drawing a right triangle to model the problem helps. I started by drawing the lines of the triangle to model the hiker's journey- a vertical straight line for 11 km north and then a horizontal line connected to the top of it for 11 km east; I then drew the hypothenuse to connect the two lines.

The hypothenuse is what we have to solve for, so we will use the Pythagorean Theorem, a^2 + b^2 = c^2. Since both distances are 11 km both a and b in the equation are 11.

11^2 + 11^2 = c^2

121 + 121 = c^2

242 = c^2

c = 15.56

Rounding the answer makes it 16 km for the hiker's magnitude of displacement.

Which of the following is not a property of electromagnetic waves?

Answers

Answer: It does not include alpha rays

Explanation: It does not include alpha rays

3. How many elements are found naturally on the Farth? *

Answers

Answer:

Fir wat glasss

Explanation:

A 10 kg ball is traveling at the same speed as a 1 kg ball. Compared to the 10 kg ball,the 1 kg ball has what?

Answers

Answer:

I would say that the 1 kg ball weighs 1 kg. I don't see the answer choices.

The motion of a car on a position-time graph is represented with a horizontal line. What does this indicate about the car’s motion? A. It’s not moving. B. It’s moving at a constant speed. C. It’s moving at a constant velocity. D. It’s speeding up. i dont know if ive asked this before if i have sorry

Answers

answer i think its d because the car is gradually going up

Anyone know? /——&/&:&:&:!:’dnndndndnd

Answers

Answer:

Explanation:

1.25 m/s

The answer is 1.25 m/s.

calculate the kinetic energy possessed by a uniformly moving body of mass 40 kg if it covers 800m in 40 seconds​

Answers

Answer:

400J

Explanation:

s=d/t

s=800/40

s=20m/s

K.E= 1/2mv^2,

=1/2*40*20

=400 J

A ball is thrown upwards into the air with an initial velocity of
17.5 m/s. What is the maximum height that the ball traveled
during that time (assuming there is no air resistance). Round your
answer to two decimals places.

Answers

Answer:

y = 15.61 [m]

Explanation:

To solve this problem we must use the following kinematics equation. We must bear in mind that the acceleration of gravity is negative since the direction of gravity is opposite to the direction of motion.

[tex]v_{f} ^{2} = v_{i} ^{2} -(2*g*y)[/tex]

where:

Vf = final velocity = 0

Vi = initial velocity = 17.5 [m/s]

g = gravity acceleration = 9.81 [m/s^2]

y = height [m]

The final speed is zero, since the ball reaches the maximum height its speed will be zero since it cannot be lifted up more.

0 = (17.5)^2 - (2*9.81*y)

306.25 = 2*9.81*y

y = 15.61 [m]

Un transformador reductor se usa para convertir un voltaje alterno de 10000 V a 500V ¿Cuál deberá ser la razón (N1/N2) entre las espiras si la corriente en el primario es de 1 amp. Y el transformador tiene un rendimiento del 100%. ¿Cuál es la corriente de salida?

Answers

Answer:

(a). The value of [tex]\dfrac{N_{1}}{N_{2}}[/tex] is [tex]\dfrac{1}{20}[/tex]

(b). The output current is 0.05 A

Explanation:

Given that,

Secondary voltage = 10000 V

Primary voltage = 500 V

Primary current = 1 A

(a). We need to calculate the value of [tex]\dfrac{N_{1}}{N_{2}}[/tex]

Put the value into the formula

[tex]\dfrac{V_{s}}{V_{p}}=\dfrac{N_{2}}{N_{1}}[/tex]

[tex]\dfrac{N_{1}}{N_{2}}=\dfrac{V_{p}}{V_{s}}[/tex]

Put the value into the formula

[tex]\dfrac{N_{1}}{N_{2}}=\dfrac{500}{10000}[/tex]

[tex]\dfrac{N_{1}}{N_{2}}=\dfrac{1}{20}[/tex]

(b). We need to calculate the output current

Using formula of current

[tex]\dfrac{I_{s}}{I_{p}}=\dfrac{N_{1}}{N_{2}}[/tex]

[tex]I_{s}=I_{p}\times\dfrac{N_{1}}{N_{2}}[/tex]

Put the value into the formula

[tex]I_{s}=1\times\dfrac{1}{20}[/tex]

[tex]I_{s}=0.05\ A[/tex]

Hence, (a). The value of [tex]\dfrac{N_{1}}{N_{2}}[/tex] is [tex]\dfrac{1}{20}[/tex]

(b). The output current is 0.05 A

an object 2cm high when placed in front of a converging mirror produces a virtual image 3cm high. if the object is placed at a distance of 8cm from the pole of the mirror, calculate the position of the image

Answers

Answer:

v= +12cm

Explanation:

m = (size of image)/(size of the object) = -v/u  

u = - 8 cm

 3/2 = -v/u 

3/2 = -v/-8 

v = +12 cm

Using mirror formula, 

1/v + 1/u = 1/f  ...(i)

1/12 + 1/(-8) = 1/f 

f = -24 cm

Focal length is 24 cm

A coil of wire wrapped around an iron core is rotated in a magnetic field. Electric current begins to flow in the coil.
What type of device is this set-up?
A. a compass
B.an electromagnet
C. a generator
D.a motor

Answers

the answer most likely is C. a generator

Select the correct words from the drop-down menus to complete the sentence.
The
v work of a machine can never exceed the
work because
some of the work.
uses

Answers

Answer:

1. C

2. B

3. B

Explanation:

Took assignment on edge

The

TIME REMAINING
52:45
The robotic rover Curiosity has instruments that detect radiation both inside the spacecraft and in the Mars environment. What is most likely the purpose of this radiation detection?

to determine whether human exploration of Mars is possible
to develop better X-ray technology
to find evidence of once-living Martian microorganisms
to investigate evidence of hydrogen and water

Answers

Answer:

D

Explanation: just trust me

Where is mercury naturally found?

Answers

wellll that would be in earth crust

Answer:

in space

Explanation:

its a planet

Which is the process by which a solid changes to a liquid?

Answers

Answer:

melting.

Explanation:

The process in which a solid changes to a liquid is called melting. The melting point is the temperature at which a solid changes to a liquid. 

A microwave oven operates on 1500 W of power and is used for 30 minutes. How
much electrical energy, in kW. h, is used by the microwave oven?

Answers

Answer:

i think the answer is 50 kW.h

are unicorns real or not

Answers

Answer:

no lol

Explanation:

A body of mass 10 kg is pulled by a force 8 N. calculate the acceleration and the the final velocity of the body after 5 second.​

Answers

Acceleration = force / mass = 8/10 m/s^2
After 5 s (from the start) velocity = 5 x 8/10= 4 m/s

Caitlin is riding her bike. Which of the following statements tells what is happening?

Answers

What are the following statements? If there's one that mention a description of current action, or motion, that's your answer.

A ball is rolled at a velocity of 12 m/sec. After 36 seconds, it comes to a stop. What is the acceleration of the ball?

Answers

Answer:

Given -

Initial velocity of the ball, u = 0 m/sfinal velocity of the ball, v = 12 m/sTime taken = 36 sec

[tex] \\ [/tex]

To find -

Acceleration of the ball.

[tex] \\ [/tex]

Solution -

[tex] \\ \sf \: A = \frac{v - u}{t} \\ \\ \\ \implies \sf \: A = \frac{12 - 0}{36} \\ \\ \\ \implies \sf \: A = \frac{12}{36} \\ \\ \\ \implies \sf \underline{A = 0.33 \: m \: / {s}^{2} } \\ [/tex]

Therefore, the acceleration of the ball is 0.33 m/.

Starting from rest, a car travels 18 meters as it accelerates uniformly for 3.0 seconds. What is the magnitude of the car's acceleration? A. 6.0 m/s2 B. 2.0 m/s2 C. 3.0 m/s2 D. 4.0 m/s2​

Answers

Answer:

D. 4 m/s²

Explanation:

Given;

initial velocity of the car, u = 0

distance traveled by the car, s = 18 m

time of motion of the car, t = 3.0 s

The magnitude of the car's acceleration is given by;

s = ut + ¹/₂at²

s = 0 + ¹/₂at²

s = ¹/₂at²

2s = at²

a = 2s / (t²)

a = ( 2 x 18) / (3²)

a = 4 m/s²

Therefore, the  magnitude of the car's acceleration is 4 m/s²

Stars go through a life cycle. What is the expected outcome for a star much more massive than the sun?

Answers

Answer:

Big stars, about 5 - 25 times the mass of sun, usually they collect so much of matter and energy that they just explode, this explosion is called supernova. A supernova is a powerful and luminous stellar explosion. This astronomical event occurs during the last evolutionary stages of a massive star.

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