If it is brittle, dissolves easily in water, has a high melting point, and conducts electric current it is a(n) __________.

Answers

Answer 1

Answer:

Ionic Compound

Explanation:

We know that an ionic compound dissolves easily in water. Its melting point is very high, and it is a conductor.

The equation for Ionic Compound (IC) versus Electricity (EC) is

IC=1/2 divided by EC

EC is the base for the mathematics, so EC is a base warmth at 360.

360 divided by 1/2 is 180

That is the speed in which the current has.

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Related Questions

*Two objects have an elastic collision. Before the collision they approach one another with a velocity of 45 m/s. With what speed will they be separating after the collision?

Answers

In the elastic collision, the velocity of approach and velocity of separation is the same. The velocity of the separation after the collision will be 45 m/s.

What is collision?

The abrupt, violent coming together in direct contact of two bodies is known as the collision. a falling object and a floor are examples of collisions.

When the distance between two ships decreases while the bearings remain constant, a collision occurs.

Objects have an elastic collision. Before the collision, they approach one another V1​= V2​=45 m/sec

The velocity of the approach is found as;

[tex]\rm = U_1-U_2 \\\\\ = 45-45 \\\\ = 0[/tex]

As we know,

[tex]\rm e = \frac{U_2-U_1}{V_2-V_1}[/tex]

The velocity of separation is found as;

[tex]\rm V_1-V_2[/tex]

and, e=1 for elastic collision.

[tex]\rm U_1-U_2=V_2-V_1[/tex]

[tex]\rm V_2-V_1 = 0 \\\ V_2 = V_1 = 45 \ m/sec[/tex]

In the elastic collision, the velocity of approach and velocity of separation is the same.

Hence the velocity of the separation after the collision will be 45 m/s.

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What are two pieces of evidence that support the big bang theory?.

Answers

One -the universe is expanding, proven with something called red-shift (wavelength of light increases due to distance between objects increases) Two - cosmic microwave background radiation. Three - the abundance of different elements in the universe.

In an experiment, two objects, object X and object Y, travel toward each other and collide. Data are collected about
each object before, during, and after the collision, as shown in the table. Which ofthe following pairs of data, when
used together to create two graphs, could verify the conservation of momentum? Select two answers.

A) Average force exerted on object X by object Y and time of collision, because these measurements can be used to determine the change in momentum of object X.

B) Average force excreted on object Y by object X and time it collision, because these measurements can be used to determine the change in momentum of object Y.

C) Mass of object X and velocity of object X before collision, because these measurements can be used to determine the initial momentum of object X.

D) Mass of object Y and velocity of object Y before collision, because these measurements can be used to determine the initial momentum of object X.

Answers

(a) Average force exerted on object X by object Y and time of collision, because these measurements can be used to determine the change in momentum of object X.

(b) Average force excreted on object Y by object X and time it collision, because these measurements can be used to determine the change in momentum of object Y.

What is conservation of linear momentum?

The principle of conservation of linear momentum, states that in the absence of external force, the sum of initial momentum must be equal to sum of final momentum.

P = mv

where;

m is massv is velocityp is momentum

F = mv/t

Ft = mv

J = Δmv

where;

J is impulse = FtΔmv is change in momentum

mass of object X and object Y are constant, and cannot be used create graphs.

Impulse (product of force and time) received by an object is equal to change in the momentum of the object.

Thus, the pairs of data that can be used together to create two graphs, to verify the conservation of momentum are;

(a) Average force exerted on object X by object Y and time of collision, because these measurements can be used to determine the change in momentum of object X.

(b) Average force excreted on object Y by object X and time it collision, because these measurements can be used to determine the change in momentum of object Y.

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The vertical distance covered by a body falling freely under gravity is directly proportional to the square of the time for which it falls. If a body covers 300m in the first 10 seconds of its free fall, find the distance covered by the body in the next 10 seconds.​

Answers

Answer:

S = 1/2 a t^2       distance covered by falling body from speed = 0

300 = 1/2 a 10^2

a = 600 m / 100 s^2 = 6 m/s^2

v = a t = 6 m/s^2 s * 10 s = 60 m/s     speed after 10 sec

S2 = v t + 1/2 a t^2

S2 = 60 m/s * 10 sec + 3 m/s^2 * 100 s^2

S2 = 600  m + 300 m = 900 m

Which phase of the moon is shown?

full moon
first quarter
waning gibbous
waxing crescent

Answers

Waxing crescent. The answer would be the last answer choice. Which will be the waxing crescent.

Atoms with certain characteristics are radioactive. Which of those below will
always be radioactive?
A. all atoms with more neutrons than protons
B. all atoms with an atomic number under 83
C. all atoms with fewer neutrons than protons
D. all atoms with an atomic number over 83

Answers

Answer:

D. all atoms with an atomic number over 83

What has 8 protons 10 neutrons and 10 electrons

Answers

the 18O2 has 8 protons 10 neutrons and 10 electrons

How would life on earth be different if its axis was not tilted with respect to its orbit?.

Answers

Answer:

oone side at a time would be hot and the other oone

Explanation:

One side will be hot and the other cold no in-between

The more light bulbs you add to a series circuit, the _______ the lights will become.
A. Brighter
B. Dimmer
C. Hotter
D. None of the Above

Answers

Answer:

brighter

Explanation:

the more light bulbs you add to a series of circuits, the brighter the room will be.

Hotter.
Explanation: The more bulbs you have running in a circuit the greater the electrical current thus multiplying the overall heat in each light bulb.

Balance the nuclear equation by giving the mass number, atomic number, and element symbol for the missing species.

Answers

The complete equation for the nuclear reaction is 10/5 B + 4/2He ------> 13/7N + 1/on

What is a nuclear reaction?

A nuclear reaction is one in which the nucleus of one isotope is changed into the nucleus of another isotope. In this process some particles may be released.

Looking at the reaction equation, we know that the complete equation for the nuclear reaction is 10/5 B + 4/2He ------> 13/7N + 1/on

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I would really appreciate the help on this pass paper question.

Answers

Answer:

Heat lost thru doors & windows = (100 - 75 - 5) = 20

20% is the fraction of heat lost thru doors and windows

One wants to obtain the largest savings per unit of cost

roof:

200 / 600 = 1/3

150 / 1000 = .15

40 / 2300 = .017

The largest of these is 1/3 so the most benefit would be obtained by insulating the roof

Since heat loss thru the roof depends on heat loss thru the attic, this is the most cost effective in reducing heat loss

The more the difference in temperature between the ceiling and roof (attic) the more heat will be lost thru the roof, so insulating the roof will decrease the heat loss of the attic

The Hermes is a rotating space station that allows its occupants to experience simulated gravity. If its angular velocity is 0.66 rad/s and gives a simulated gravity of 0.4g, what is its diameter?

Answers

Answer:

a =  v^2 / R =  ω^2 R        centripetal acceleration

.4 g = .4 * 9.80 m/s^2 = 3.92 m/s^2

R = a / ω^2 = 3.92 / .66^2 =  9.0 m

D = 2 R = 2 * 9.0 = 18.0 m      diameter

How would you compare the direction of the motion of the reflected pulse with respect to the incident pulse

Answers

The  direction of the motion of the reflected pulse is inverted to that of the incident pulse.

What is a Pulse?

This is a physics term which refers to the single disturbance that moves through a transmission medium.

The reflected pulse is inverted so the direction is from right to left while that of the incident pulse is from left to right.

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hello people ~
If a unit positive charge is taken from one point to another over an equipotential surface, then
(a) work is done on the charge.
(b) work is done by the charge.
(c) work done is constant.
(d) no work is done.

Answers

Answer:

(d) no work is done

Explanation:

Since the potential at each point of an equipotential surface is the same, the potential does not change while we move a unit positive charge from one point to anotherTherefore work done in the process is zero or no work is done

Answer:

No work done

Explanation:

When a unit positive charge us taken from one point to another over an equipotential surface then

As it's equipotential no Displacement will happen

As no Displacement hence dw=0

No work done



A child swings back and forth on a swingset 40 times in 50 seconds. Find their frequency.

Answers

Answer:

.8

Explanation:

40 times is 40 'cycles'     in 50 seconds

40 / 50 = .8 Hz       ( f= Hz is cycles per second)

A 2-column table with 3 rows. The first column titled metal has entries aluminum, iron, lead. The second column titled density (grams per cubic centimeter) has entries 2.64, 7.50, 11.34.
You have discovered a meteorite that seems to be metallic. Its mass is 370 g, and you calculate the volume to be 50 cm3. Based on the three values provided, which metal would most likely match the composition of the meteorite?

aluminum
iron
lead
none of these (density is less than 1.0)

Answers

Iron,

I really hope this helped you

Explanation:

Answer:

Its just Cork and wax

Explanation:

I just did it on edge trust me

After you chew and swallow, food enters your digestive system where it can be broken down.

A.
True

B.
False

Answers

Answer:

A

Explanation:

Technically, your mouth is part of the digestive system though so I am not sure how accurate this question is.

Suppose you are pushing a stalled car. As the gets going, you need less and less force to keep it going. For the first 15 m, your force decreases at a constant rate from 210.0 N to 40.0 N. How much work did you do on the car? Draw a force-displacement graph to represent the work done during this period.​

Answers

Answer:

1875 j

Explanation:

f * d = work

your AVERAGE force is (210+ 40)/2 = 125 N

125 * 15 = 1875 j

The work done during this period will be 1875 J.. if the body is displaced in the same direction of the force it will be positive.

What is work done?

Work done is defined as the product of applied force and the distance through which the body is displaced on which the force is applied.

Work may be zero, positive and negative.it depends on the direction of the body displaced

The given data in the problem is;

F is the average force applied by the worker

d is the displacement = 15 m

The average force is ;

[tex]\rm F_{AVG} = \frac{F_1+F_2}{2} \\\\ F_{AVG} = \frac{210+40}{2} \\\\ F_{AVG}=125 \ J[/tex]

The work done by the worker will be;

[tex]\rm W= Fd \\\\\rm W= F_{AVG}d \\\\W= 125 \times 15 \\\\ \rm W=1875 \ J[/tex]

Hence the work done during this period will be 1875 J.

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general effects of global warming​

Answers

Answer:

Warmer temperatures over time are changing weather patterns and disrupting the usual balance of nature. This poses many risks to human beings and all other forms of life on Earth.Changes in temperature cause changes in rainfall. This results in more severe and frequent storms. They cause flooding and landslides, destroying homes and communities, and costing billions of dollars.Water is becoming scarcer in more regions. Droughts can stir destructive sand and dust storms that can move billions of tons of sand across continents. Deserts are expanding, reducing land for growing food. Many people now face the threat of not having enough water on a regular basis.

1. What could be the structure in the volcano that serves as a source of
geothermal energy?
A. Caldera
B. Magma chamber C. Summit D. Vent​

Answers

Answer:

it is magma chamber

Explanation:

If Frequency F, velocity v, and density D are considered fundamental units, the dimensional formula for momentum will be :

Answers

Let's see

Momentum be P

[tex]\\ \rm\Rrightarrow P=[Frequency]^a[velocity]^b[Density]^c[/tex]

[tex]\\ \rm\Rrightarrow [P]=[F]^a[v]^b[D]^c[/tex]

[tex]\\ \rm\Rrightarrow [M^1L^1T^{-1}]=[T^{-1}]^a[L^1T^{-1}]^b[M^1L^{-3}]^c[/tex]

[tex]\\ \rm\Rrightarrow MLT^{-1}=T^{-a}L^bT^{-b}M^cL^{-3c}[/tex]

[tex]\\ \rm\Rrightarrow MLT^{-1}=T^{-a-b}L^{b-3c}M^c[/tex]

On comaparing

c=1

So

b-3c=1b-3=1b=1+3b=4

and

-a-b=-1-a-4=-1-a=-1+4=3a=-3

So the unit is

DV⁴/F³

Answer:

(Frequency)⁻³(velocity)⁴Density

Explanation:

See attachments.

Liquid pools of methane are found on the surface of Titan, one of Saturn's moons. The temperature on the surface of Titan is -180°C. What is this value on the Fahrenheit scale?

Answers

Answer:

-292 degrees F

Explanation:

C = 5/9( F -32)

-180 = 5/9 (F-32)

F =  -292 degrees

Explain why we say that energy from the washing machine is wasted' as thermal energy?

Answers

Explanation:

In washing machine, the electrical energy is converted in kinetic energy then the mechanical energy is converted into thermal (heat) energy.

What is meant by the "objectivity" of web documents, and what are the three things to look for when evaluating a website for objectivity? (site 1)

Answers

Objectivity refers to the ability of a writer to present ideas or situations factually as they are without partiality.

What is objectivity in writing?

Objectivity refers to the ability of a writer to present ideas or situations factually as they are and not based on his or her own preconceived notions or bias.

To check for objectivity in a web document, one has to ;

check the source of the material compare different web documents with itcheck on the websites credibility rating from others

Therefore, objectivity means being truthful and impartial.

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The table shows the speed of ultrasound waves in different tissues in the human body.


Tissue

Speed


(m/s)


Air 330

Fat 1,450

Water 1,480

Liver 1,550

Kidney 1,560

Blood 1,570

Muscle 1,580

Bone 4,080

What happens to an ultrasound wave that moves from muscle to bone?


(1 point)


The frequency of the wave decreases.



The frequency of the wave increases.



The wavelength of the wave decreases.



The wavelength of the wave increases

Answers

Answer:

the frequency of the wave increases

Answer:

The wavelength of the wave increases

Explanation:

Just did the test

A 0.4 kg rock is dropped through a 6m height. Find its speed as it hits the ground. What is its speed at half way down?

Answers

Answer:

83.1557575 M/s

Explanation:

V²=u²+2as

v=[tex] \sqrt{u ^{2} { + 2as}^{ } } [/tex]

u is initial velocity =0

here a =g

[tex]v = \sqrt{2gs} [/tex]

v=

[tex] \sqrt{2 \times 9.8 \times 6} [/tex]

v= 83.1557575 M/s

The zone in which the greatest total mass of co2 is absorbed from the atmosphere.

Answers

The top layer is the zone in which the greatest total mass of co2 is absorbed from the atmosphere.

What is exosphere?

The exosphere is the uppermost layer of Earth's atmosphere, located between 700 and 10,000 kilometers above the surface and merging with the solar wind at its summit.

The  exosphere is a narrow, ambience space that surrounds a planetary  contains particles that are gravitational forces connected to that body yet have such a low density that they are effectively collisionless.

Hence, the top layer is the zone in which the greatest total mass of co2 is absorbed from the atmosphere.

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An electon in a box absorbs light. The longest wavelength in the absorbtion spectrum is 700 nm . How long is the box

Answers

Answer:

8.01 (10^-10) m

Explanation:

use the Particle in a box equation

E = (n^2) (h^2) / (8 m (L^2))

and energy of a particle as its wavelength equation

h c / lamda = E

combine the equations to get

h c / lamda =  (n^2) (h^2) / (8 m (L^2))

get L alone

L^2 = (2^2 - 1^2) h lamda / 8 m c

the longest wavelength is produced by a jump from the first excited state to the ground so

n = 2 to n = 1

so

L^2 = (n1^2 - n2^2) h lamda / (8 m c)

h = 6.6(10^-34) J*s

c = 3(10^8) m/s

m = 9(10^-31) kg

lamda = 700(10^-9) m

n1 =2

n2=1

A child pushes, with a constant force, a merry-go-round with a radius of 2.5 m, from rest to an angular velocity o
f 3.0 rad/s in 8.0 s. What is the merry-go-round's tangential acceleration? What is the merry-go-rounds
centripetal acceleration? What is the merry-go-rounds angular acceleration?

Answers

The centripetal acceleration of the merry-go-round is 0.938 m/s² and the angular acceleration of the merry-go-round is 0.375 rad/s².

Angular velocity of the merry-go-round

The angular acceleration of the merry-go-round is calculated as follows;

α = ω/t

α = 3/8

α = 0.375 rad/s²

Centripetal acceleration of the merry-go-round

The centripetal acceleration of the merry-go-round is calculated as follows;

a = αR

a = 0.375 x 2.5

a = 0.938 m/s²

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5 A train of mass 1.5 X 105 kg is travelling at 40 ms-' when the brakes are applied and it decelerates steadily. The train travels a distance of 250 m before coming to a halt. (a) Calculate the deceleration of the train. (b) Find the average braking force.​

Answers

Answer:

a)3.2m/s^2

b) -480,000N

Explanation:

mass of train= 150,000kg

velocity of train=40m/s

acceleration is negative

v^2=u^2-2as

v=0m/s

u=40m/s

s=250m

0=1600-500a

500a=1600

deceleration of 3.2m/s^2

newton's second law

F=ma

F= (150,000× -3.2)

F= -480,000N

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