Describe the 4 steps taken to separate a solid mixture of iron fillings, chalk powde
and table salt based on their properties given below.
[3]
The first step has been done for you.
Soluble in water?
Magnetic?
Decompose upon
heating?
No
Yes
No
Iron
Fillings
Chalk
powder
able salt
No
No
Yes
Yes
No
No

Answers

Answer 1

Answer:

no yes

Explanation:


Related Questions

The store where you work receives a shipment of stuffed animals. One box contains 48 teddy bears, and the other box has 32 stuffed dogs. Your job is to display the animals on shelves. You want to display them in rows of equal size, but you don't want to mix the teddy bears and the dogs. Use the drop-down menu to complete the statement. The greatest number of stuffed animals you can have in a row is

Answers

Answer:

16

Explanation:

The store where you work receives a shipment of stuffed animals. One box contains 48 teddy bears, and the other box has 32 stuffed dogs.

We find the factors of 32 and 48

The factors of 32 are: 1, 2, 4, 8, 16, 32

The factors of 48 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

The greatest common factor is 16.

Hence,

The greatest number of stuffed animals you can have in a row is 16

Find the magnitude and direction of the net gravitational force on mass A due to masses B and
C in the figure. Each mass is 2 kg.

a. 2.8x10^-8N, to the right
b. 2.54x10^-8N, to the right
c. 3.4x10^-8N, to the left
d. 3.4x10^-8N, to the right

Answers

Answer is A 2.8 x 10^-8 N, to the right

The net gravitational force on mass A due to masses B and C is required.

The correct option is a. [tex]2.8\times 10^{-8}\ \text{N}[/tex] to the right.

G = Gravitational constant = [tex]6.674\times 10^{-11}\ \text{Nm}^2/\text{kg}^2[/tex]

[tex]r_{AB}[/tex] = Distance between A and B = 0.4+0.1 = 0.5 m

[tex]r_{AC}[/tex] = Distance between A and C = 0.1 m

[tex]m_A=m_B=m_c[/tex] = Mass of each particle = 2 kg

The required force is

[tex]F_A=F_{AB}+F_{AC}\\ =\dfrac{Gm_Am_B}{r_{AB}^2}+\dfrac{Gm_Am_C}{r_{AC}^2}\\ =Gm^2\left(\dfrac{1}{r_{AB}^2}+\dfrac{1}{r_{AC}^2}\right)\\ =6.674\times 10^{-11}\times 2^2\left(\dfrac{1}{0.5^2}+\dfrac{1}{0.1^2}\right)\\ =2.8\times 10^{-8}\ \text{N}[/tex]

The magnitude of force will be [tex]2.8\times 10^{-8}\ \text{N}[/tex]

The direction will be towards the right since C is closer to A.

Learn more:

https://brainly.com/question/1835915

https://brainly.com/question/7038796

Please i just need help

Answers

Answer:

D

Explanation:

it's the only negative one

Answer:

letter C.

Explanation:

A movie director creates a scene in which people on Spaceship #1 can see approach of Spaceship #2 and hear its engines. The director
hires a scientist to review the scene.
What should the scientist tell the director?

A .The scene needs no changes because light and sound waves can both travel through space.


B. The scene needs changes because neither light waves nor sound waves can travel through space.

C. The scene needs changes because sound waves can travel through space, but light waves cannot.

D. The scene needs changes because light waves can travel through space, but sound waves cannot.

A,B,C or D plz answer !

Answers

Answer:

It is D.

Explanation:

Sound travels by the movement of particles bumping against each other and if there is no particles in a vacuum(space) then there is no sound. Light can travel through space because it doesn't need to travel by/through particles.

what is the difference between a parallel connection and series connection

Answers

Answer:

here lol

Explanation:

Answer:

when the connection of the batteries is parallel negative to negative n positive to positive is called parallel connection

Explanation:

Calculate the work done by the cyclist when his power output is 200 W for 1800 seconds.

Answers

Answer:

3.6 × 10^5 J

Explanation:

Work Done = Energy

Energy = Power × time

Energy = 200 × 1800

= 360000 J

W =

[tex]3.6 \times 10 {}^{5} j[/tex]

I need help lease. I will mark you brainliest

Answers

Answer: 43.5

and now I'm typing cause it said the answer had to be at least 20 characters

A mortar shell is accidentally shot straight up with an initial speed of 147 m/s. How long does it take for the shell to reach its maximum height? How high does the shell rise? If the shell falls straight down after is stops, what is its velocity when it hits the ground? What is the total time the shell is in the air?

Answers

Answer:

1) t ≈ 14.985 seconds

2) The maximum height reached ≈ 1101.4 meters

3) The velocity with which it hits the ground = 147 m/s

4) The total time in the air ≈ 29.969 seconds  

Explanation:

1) The given information are;

The initial velocity of the mortar shell = 147 m/s

The direction of the mortar shell = Vertically upwards

Therefore, we have, from the equation of motion

v = u - g·t

Where;

v = The final velocity = 0 at maximum height

u = The initial velocity = 147 m/s

g = The acceleration due to gravity = 9.81 m/s²

Therefore, we have;

0 = 147 - 9.81 × t

9.81 × t = 147

t = 147/9.81 ≈ 14.985 seconds

t ≈ 14.985 seconds

2) From the equation of motion, v² = u² - 2×g×s

Where;

s = The maximum height reached

We have;

0² = 147² - 2×9.81×s

2×9.81×s = 147²

s = 147²/(2×9.81) ≈ 1101.4 meters

The maximum height reached ≈ 1101.4 meters

3) The velocity with which it hits the ground is equal to the initial velocity = 147 m/s

4) The total time in the air = 2 × The time it takes to reach maximum height

The total time in the air = 2 × 14.985 ≈ 29.969 seconds

The total time in the air ≈ 29.969 seconds

A heavy log will float on water
because:

A. It is less dense than water
B. It weighs less than water
C. It is more dense than water
D. It weighs more than water

Answers

Answer:

A it is less dense than water

Explanation:

The density, of a substance is its mass per unit volume

What is the process called when heat is added to a liquid? What does the liquid become?

Answers

Answer:

evaporation

Explanation:

when the liquid is heated it evaporates until it becomes air

If John mows 11.5 meters of lawn from east
to west in 7.1 seconds, what is the velocity
of the lawnmower?
A. 0.6 m/s East
B. 0.6 m/s West
C. 1.6 m/s East
D. 1.6 m/s West

Answers

I believe it would be 1.6 East

this is due by 11.00 pm send some help pls!!!!

Your science teacher presents you with a circuit model that contains five light bulbs, a switch, and a 1.5-volt battery. The wires of the circuit are hidden from your view so that you cannot see how the bulbs are connected to the battery. How could you determine the type of circuit used in this model?
A.
If all the bulbs are equal brightness, it is a series circuit because each bulb in a series circuit has the same resistance.

B.
If all the bulbs are equal brightness, it is a parallel circuit because each bulb in a parallel circuit has its own path to the battery.



C.
If you unscrew one bulb and all the others stay lit, it is a parallel circuit because each bulb in a parallel circuit has its own path to the battery.



D.
If you unscrew one bulb and all the others stay lit, it is a series circuit because each bulb in a series circuit have to share the same current.

Answers

Answer:

C

Explanation:

PLACING BULBS IN SERIES

Increasing the number of bulbs decreases the brightness of the bulbs.

The resistance increases.  In a series circuit, adding bulbs increases the resistance in the circuit. A complete circuit requires the electrons to move from the negative terminal of the battery to the positive terminal.  When one bulb is unscrewed it opens the circuit preventing a complete circuit and the electrons cannot return to the battery.

PLACING BULBS IN PARALLEL

Two bulbs in parallel are brighter than two bulbs in series.   In a parallel circuit each bulb is in its own circuit.  As bulbs are added the resistance in the circuit decreases since each circuit is another pathway for electrons to move from one end of the circuit to the other.

If you unscrew one bulb and all the others stay lit, it is a parallel circuit because each bulb in a parallel circuit has its own path to the battery.

What is bulbs in series combination?

The brightness of the bulbs reduces as the number of bulbs increases in series. Resistance rises in intensity. Adding bulbs to a series circuit raises the circuit resistance. The electrons must pass from the battery's negative to positive terminals in order for the circuit to be complete. When one bulb is removed, the circuit is broken, making it impossible for the electrons to return to the battery.

What is bulbs in parallel combination?

In comparison to two bulbs in series, two bulbs in parallel are brighter. Each bulb is in its own circuit when the circuits are parallel. As more bulbs are added, the resistance in the circuit reduces because each additional circuit provides an additional route for electrons to travel from one end to the other.

You  can determine the type of circuit used in this model by unscrewing one bulb and all the others stay lit, it is a parallel circuit because each bulb in a parallel circuit has its own path to the battery. Hence, option(C) is correct.

Learn more about parallel combination here:

https://brainly.com/question/14547003

#SPJ2

What is the average speed of the boat between 4 and 6 minutes?

Answers

Answer:

[tex] the \: average \: speed \: of \: the \: boat \: between \: 4 \: and \: 6 \: \\ minutes \: = \frac{1000 - 500}{6 - 4} = \frac{500}{2} = 250[/tex]

note: cant really see the measuring units for clear unit for the value, however the average speed is 250 meter/mins, from observation.

A machine produces a larger force than you exert to operate the machine. How does this input distance of the machine compare to its output distance?

Answers

Answer:

Because the output force is greater than the input force, the input distance must be greater than the output distance.

Explanation:

least massive metalloid of period 4​

Answers

Answer:

It is Germanium(Ge)

Explanation:

why do people have a virgna

Answers

Answer: For many things, like reproduction and releasing bad bacteria.

Explanation: We all have our parts, but what’s most important is our private parts. It helps us to use the restroom, and release the bad bacteria, without it, we’d die from holding it in! But also, it helps the world grow, because to reproduce we need those parts.

Erosion is the process by which soil and sediments are moved by gravity, wind, and water. Erosion occurs naturally, but it can be accelerated by human activity. Which of these human activities most contributes to soil erosion?


biking on forest trails

boating on a lake

cutting down trees

fertilizing a lawn

Answers

Answer:

Cutting down trees

Explanation:

The roots of trees often hold settiments in place, thus removing these strong natural barriers makes it easier for erosion to occur.

how do I make a baby come out of a pickle?

Answers

Answer:

free free free free free free free free free free free free free free free free free points

Within only a few seconds, Ana determines that she does not wish to be at this fraternity party and makes a hasty exit back
to her dorm. Which of the following was responsible for Ana's immediate, intuitive reactions to this "frat party"?
a. left brain
b. reflex arc
C. cognitive unconscious
d. righ brain

Answers

Answer:

left brain the left brain is your rapid more irrisponsibe side while your right cortex thinks about the potential outcomes

Which chemical bond has a low melting point? Why does this bond have low melting points? A common compound that this bond produces is used in our everyday life. SUGAR!

Answers

1,2: When simple molecular substances melt or boil, it is these weak intermolecular forces that are overcome. The covalent bonds are not broken. Relative little energy is needed to overcome the intermolecular forces, so simple molecular substances have a low melting and boiling points.

3: Water, Almost no living thing can survive without water. Water is everywhere on our planet. It is the reason we have an organic life on earth. A water molecule consists of one oxygen atom combined with two hydrogen atoms. We use water throughout day and night; in drinking, cooking, household needs, industries, and agriculture. Apart from these general uses of water, you might be amazed to know that water plays a major role in volcanic eruptions.

Answer:

1,2: When simple molecular substances melt or boil, it is these weak intermolecular forces that are overcome. The covalent bonds are not broken. Relative little energy is needed to overcome the intermolecular forces, so simple molecular substances have a low melting and boiling points.

3: Water, Almost no living thing can survive without water. Water is everywhere on our planet. It is the reason we have an organic life on earth. A water molecule consists of one oxygen atom combined with two hydrogen atoms. We use water throughout day and night; in drinking, cooking, household needs, industries, and agriculture. Apart from these general uses of water, you might be amazed to know that water plays a major role in volcanic eruptions.

what is quantum physics and what is the equation for space time and travel?

Answers

Answer:

Im not smart

Explanation:

but im your bff

Answer:

it explain how everythings work you should work with the speed of light multiply with the distance of the equator

if an element forms a 2+ ion , in which group of the periodic table would you expect to find it ?
A. 17
B. 1
C. 18
D. 2​

Answers

D. My friend:) 2 jajajaja

Answer: D

Explanation:

A dolphin can swim at a constant speed of 12.5 m/s. How
long does it take a dolphin to swim 45 meters?

Answers

Answer:

[tex]\boxed {\tt 3.6 \ seconds}[/tex]

Explanation:

Time can be found by dividing the distance by the speed.

[tex]t=\frac{d}{s}[/tex]

The distance is 45 meters and the speed is 12.5 meters per second.

[tex]d= 45 \ m \\s= 12.5 \ m/s[/tex]

[tex]t=\frac{45 \ m}{12.5 \ m/s}[/tex]

Divide. Note that the meters, or "m" will cancel each other out.

[tex]t=\frac{45 }{12.5 \ s}[/tex]

[tex]t=3.6 \ s[/tex]

It will take the dolphin 3.6 seconds to swim a distance of 45 meters are 12.5 meters per second.

Answer:3.6 seconds

Explanation: 45/12.5 m/s is 3.6s

IF RONALD CAN TAKE 2 GOLIATH DILD0S HOW MANY CAN TONY TAKE

USING THE PYTHAGOREAN THEOREM

Answers

Answer:

69

Explanation:

A roller coaster has a mass of 300 kg. It drops from rest at the top of a hill that's 101 m tall. How fast is it going when it reaches the bottom? Acceleration due to gravity is g = 9.8 m/s2 .
Answer choices:
A. 41.2 m/s
B. 21.8 m/s
c. 44.5 m/s
D. 76.7 m/s​

Answers

D
300k
minus
9.8
divide 101
The answer is D I’m pretty sure

How are gravity and air resistance alike? How are they different?​

Answers

Answer:

kid

Explanation:

PLZ HELP SOMEONE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! what is badminton drops??????????????????????????????????????

Answers

Answer:

A drop shot is the badminton shot that you perform when you are in the back of your court and you hit the birdie so it lands in the front part of your opponent's side

Explanation:

A hockey puck sliding on a frozen lake comes
to rest after traveling 176 m.
If its initial velocity is 2.3 m/s, what is its
acceleration

Answers

Given parameters:

Distance traveled  = 176m

Initial velocity  = 2.3m/s

Unknown:

Acceleration  = ?

Solution:

Acceleration is the change in velocity with time. To solve this problem, we apply one of the motion equations;

              V²   = U²  + 2as

 where V is the final velocity

              U is the initial velocity

               a is the acceleration

               s is the distance

       final velocity is 0;

                   0²  = 2.3² + 2 x a x 176

                   -5.29  = 352a

                    a  = - [tex]\frac{5.29}{352}[/tex]   = - 0.015m/s²

A sound wave ________ and ______ the air molecules around your ear.
Group of answer choices

moves and shakes

compresses, expands

vibrates and heats up

Answers

Answer:

compresses and expands

Answer:

compreses and expands

Explanation:

because it is

A population of lobsters was recently exposed to a new disease. Which type of limiting factor is this disease and what will be its predicted impact on the carrying capacity of this population? Group of answer choices density independent; the carrying capacity will increase density dependent; the carrying capacity will decrease density dependent; the carrying capacity will increase density independent; the carrying capacity will be reduced

Answers

Answer:

the carrying capacity will decrease density dependent

Explanation:

The limiting factor of the disease is density dependent and will decrease the carrying capacity of the population because the disease that affect the population operate when the number of organisms in per unit area get to a specific level , it's affected the population when the population per unit are reached a certain level and the disease decrease the carrying capacity of the population. Carrying capacity is the average population size of organisms in an habitat. As the lobsters population is affected by disease, the population sizes reduced because many of the lobsters would of died and inactive, thereby causing a reduction in the size and capacity.

Other Questions
Caroline: Hi Derek good morning! I really got to tell you something, I apologize but I broke the phone, it was an accident. I did not realize the phone was sitting on the edge of the car, so I accidentally closed the trunk and smashed the cell phone to pieces. I really want to make it up to you, do you want me to buy you a new phone? or what can I do to fix this? is this right u guys? The December 31, 2018, unadjusted trial balance for Demon Deacons Corporation is presented below. Accounts Debit CreditCash 10,000 Accounts Receivable 15,000 Prepaid Rent 7200 Supplies 4000 Deferred Revenue 3000Common Stock 11000Retained Earnings 6000Service Revenue 51,200Salaries Expense 35,000 71,200 71,200At year-end, the following additional information is available: a. The balance of Prepaid Rent, $7,200, represents payment on October 31, 2021, for rent from November 1, 2021, to April 30, 2022. b. The balance of Deferred Revenue, $3,000, represents payment in advance from a customer. By the end of the year, $750 of the services have been provided. c. An additional $700 in salaries is owed to employees at the end of the year but will not be paid until January 4, 2022. d. The balance of Supplies, $4,000, represents the amount of office supplies on hand at the beginning of the year of $1,700 plus an additional $2,300 purchased throughout 2021. By the end of 2021, only $800 of supplies remains.Required:1. Update account balances for the year-end information by recording any necessary adjusting entries. No prior adjustments have been made in 2018. 2. Prepare an adjusted trial balance as of December 31, 2018. How are archaea and bacteria alike What is the study of how objects move and interact called?condensed matter physicsnuclear physicselectromagnetismmechanics a = 6, b = 3 and c = 2: 2(a + b) c = ______ Excerpt from the egypt game: In the line below, what kind of technique is the author using to create his/her style? "So far, so good. On duty at 10 o'clock...A few words about the ice problem with Lookout Reginald Lee, who shared the same watch...A few more words about the cold...But mostly just silence, as the two stared into the darkness." Serena wants to buy a new hair dryer. She surfs the Internet and finally considers buying either model A or model B from the same company. She rates them on their price, energy consumption, and design. Her evaluative ratings (e) for each attribute and her beliefs of how each model performs on a given attribute (b) are given below: Model A Model B Attribute e b b Low Price 3 8 8 Energy Consumption 2 5 6 Design 2 8 9 Refer to the Attitude Scenario. Serena sees an advertisement for Model A which states that it has the least energy consumption compared to the other models. According to the social judgment theory, which of the following is most likely to happen when she sees this message? a. Assimilation will occur. b. She will change her evaluations about Model A. c. She will place the message in the latitude of rejection. d. Her ego-defensive function of attitude will be activated. e. Her central route to persuasion will be activated. Translate Escorpio (23 de octubre - 23 de noviembre)Aunque puede aparecer tranquilo, tiene una agresin y magnetismo escondidos en el interior. Esmuy poderoso y su carcter puede traer enormes beneficios o grandes riesgos para los dems. Esemocional y se siente herido con facilidad. Es un excelente amigo. Es muy imaginativo e intuitivo.A veces es arrogante y celoso cuando algn amigo lo traiciona. Oh where was worlds first ever democratic republic Compare and contrasttemporary migration ofSouth and East Asiawith migration betweenSouthwest Asia. If the neuron in the figure above is an interneuron where does it send its message what is point slope form The 38th Parallel A. Refers to the demilitarized zone between North Korea and South Korea.B. The place for people who flee North Korea to request South Korean Citizenship.C. The place where North Koreans send its prisoners. What is the inverse of the function y - 2 = 3x? Provide steps to the equation. :) find angle b show your work HELPPPP!!! pleaseeeeee Describe the transformation of F(x)=x2 represented by g Are the number of beats in each measure, equal and balanced? *Yes, they both have the same number of beatsO No, one of the measures has more beats than the otherAre the number of beats in each measure, equal and balanced?Yes, each measure is equal because they are both 1 beat.No! One Measure is 1 beat and the other is only half a beatPop What is the solution for the equation? a+ 8/3= 2/3 What is the answer to 245 = 125 +15w w=