A scientist heats a red powder. Upon heating, a liquid and a gas form.
Which type of substance is the red powder?
O A. anion
B. an isotope
O c. an element
O D. a compound

Answers

Answer 1

Answer:

Compound

Explanation:


Related Questions

What is the kinetic energy of a 0.500 kg toy car moving at a state of 1.50 m/s

Answers

Answer:0.563

Explanation:

The kinetic energy produced in a toy car is equal to 0.563 J.

What is the kinetic energy and potential energy?

The energy exhibited by a moving body because of its motion is said to be its kinetic energy. Work should be done which can change the kinetic energy of a moving object.

The kinetic energy of a moving object can be determined from the formula mentioned below:

K.E. = ½mv²     where ‘m’ and ‘v’ is the mass, velocity of the object.

Potential Energy (P.E.)is energy that is stored in an object due to its position and can be expressed as P.E = mgh where h, m, and g are the height, mass, and gravitational acceleration respectively.

Given, the mass of the toy car =, m = 0.500 Kg

The velocity of the toy car, v = 80 m/s

The kinetic energy = (1/2)× 0.500 ×(1.50)²

K.E. = 0.563 J

Learn more about kinetic energy, here:

brainly.com/question/15764612

#SPJ2

HELPPP PLEASE URGENT

Answers

convex mirrors are DIVERGING mirrors. The image will get DIMINISHED and VIRTUAL

RNA is ______________________stranded. It _______________ leave the nucleus, unlike DNA. It still consists of __________________, however the _____________ in the backbone of the strand is different than in DNA.
The nitrogenous bases are different in RNA; instead of Thymine, Adenine now pairs with _____________________.

Answers

Answer:

See below

Explanation:

RNA is single-stranded. It does leave the nucleus, unlike DNA. It still consists of strands, however, the ribose in the backbone of the strand is different than in DNA.

The nitrogenous bases are different in RNA; instead of Thymine, Adenine now pairs with Cytosine.

What determines what we call the phases of the
moon?

Different fractions of the moon

Areas of the moon we cannot see

Days on the calendar
No answer text provided.

Answers

Different fractions of the moon

Two fixed charges, q1 = +1.07µC and q2 = -3.28µC, are 61.8cm apart. Where may a third charge be located so that no net force acts on it?

Answers

Answer:

12...lollll

Explanation:

.

Answer:

Can u re-write the question please, I dont understand?

Explanation:

What is one source error associated with self-report inventories, and what is one of its solutions?

Answers

Answer:

Explanation:

One source error is deliberate deception, and one of its solutions is having a lie scale inserted into the assessment. Another source error is social desirability, and one of its solutions is locating questions sensitive to bias and changing or dropping them. Another source error is response set, and two of its solutions are using word variations and writing questions on the assessment in different ways.

-A 180 kg hippo is riding a bicycle at a speed of 6.0

m/s. Out of nowhere, a chimpanzee runs out in the

hippo's path and he must slam on his brakes. If the

bicycle's brakes exert a force of 1600 N, how

long will it take to stop the bicycle? _s

Answers

Answer:

0.0675 seconds

Explanation:

From the question,

We apply newton's second law of motion

F = m(v-u)/t.................... Equation 1

Where F = force exert by the brake, v = final speed, u = initial speed m = mass of the bicycle, t = time.

make t the subject of the equation

t = m(v-u)/F................... Equation 2

Given: m = 180 kg, u = 6.0 m/s, v = 0 m/s (comes to stop), F = -1600 N ( agianst the dirction of motion)

Substitute these value into equation 2

t = 180(0-6.0)/-1600

t = -1080/-1600

t = 0.0675 seconds.

MC Qu. 82 A design engineer wants to construct a sample... A design engineer wants to construct a sample mean chart for controlling the service life of a halogen headlamp his company produces. He knows from numerous previous samples that this service life is normally distributed with a mean of 500 hours and a standard deviation of 20 hours. On three recent production batches, he tested service life on random samples of four headlamps, with these results: Sample Service Life (hours) 1 495 500 505 500 2 525 515 505 515 3 470 480 460 470If he uses upper and lower control limits of 520 and 480 hours, what is his risk (alpha) of concluding servicelife is out of control when it is actually under control (Type I error)? A. 0.0026B. 0.0456C. 0.3174D. 0.6826E. 0.9544

Answers

Answer:

B) 0.0456

Explanation:

It is given that :

Rationale :

UCL = 480

LCL = 480

∴ Mean , [tex]$\bar X = 500$[/tex]

The standard deviation of sample (Sn) = 11.55

Z (for UCL) [tex]$=\frac{\text{UCL - Mean}}{\text{Sn}}$[/tex]

                  [tex]$=\frac{520-500}{10}$[/tex]

                  = 2

Similarly,

Z (for LCL) [tex]$=\frac{\text{LCL - Mean}}{\text{Sn}}$[/tex]

                  [tex]$=\frac{480-500}{10}$[/tex]

                  = -2

Now using the z table for finding the confidence level between Z value of -2 and 2.

Confidence level = 0.4772 + 0.4772

                             = 0.9544

Risk (alpha) = 1 - confidence level

                   = 1 - 0.9544

                   = 0.0456

please help me anyone i will mark brainliest

Answers

Answer:

for 4.567 I can't tell if it x [tex]10^{3}[/tex] or x [tex]10^{5}[/tex] so:

answer using x [tex]10^{3}[/tex] = 0.0000644697N

answer using x [tex]10^{5}[/tex] = 0.00644697

Explanation:

use equation F = GMm/[tex]R^{2}[/tex]

20 points + Brainliest. Please help!

Which process represents a charge from disorder to order?
A. The free expansion of a gas into a vacuum
B. The condensing of a gas to a liquid
C. The melting of an ice cube in warm water
D. The flow of heat from the interior of a refrigerator to the exterior.

Answers

Answer:

C. the melting of an ice cube in warm water

Answer:  d,a,b,c

i think i dont know if u asked for this answr. but i hope this helped

Explanation:

Why does a lunar eclipse last for a few hours whereas a solar eclipse only lasts for a few minutes?

Select one:

a.
The moon takes more time to travel through the earth’s umbra.


b.
Because the moon is moving much more slowly than the sun.


c.
Solar and lunar eclipses actually last about the same time.


d.
Because the sun is stationary and the moon is moving.

Answers

Answer:

The type and length of a lunar eclipse depend on the Moon's proximity to either node of its orbit. ... A total lunar eclipse can last up to nearly 2 hours, while a total solar eclipse lasts only up to a few minutes at any given place, due to the smaller size of the Moon's shadow.

What is a gear. Please give detailed explanation

Answers

Answer:

gear is part of vehicle.it helps.

Answer:

Explanation:

A gear is a device that transfers mechanical energy from on point to another.

in a nuclear plant, 1 * 10 ^27 J of energy is available from mass conversion How much mass was lost ?

Answers

Answer:

[tex]1.2\times 10^{10}\ kg[/tex]

Explanation:

Given that,

The energy of the nuclear plant, [tex]E=10^{27}\ J[/tex]

We need to find how much mass wast lost.

The relation between energy and mass is given by :

[tex]E=mc^2[/tex]

Where

c is speed of light

[tex]m=\dfrac{E}{c^2}\\\\m=\dfrac{10^{27}}{(3\times 10^8)^2}\\\\m=1.2\times 10^{10}\ kg[/tex]

So, [tex]1.2\times 10^{10}\ kg[/tex] of mass was lost.

Emily is pushing a toy sand truck. She realizes it is much harder to push the truck when it is full of sand than when it is empty. What is the reason for this?

An object with a greater mass requires a smaller force to accelerate.
An object with a greater mass requires a greater force to accelerate.
An object pushed with a greater force has a greater mass.
An object pushed with a greater force has less mass.

Answers

Answer: An object with a greater mass requires a greater force to accelerate.

Explanation:

Answer:

An object with a greater mass requires a greater force to accelerate.

Explanation:

I took the test.

Which pair of element types is most likely to share valence electrons in a
covalent bond?
A. Two metals
B. A metal and a nonmetal
C. Two nonmetals
D. A metal and a metalloid

Answers

Answer:

It's C, you guys!!!!

Explanation:

what is CHA-CHA-CHA.​

Answers

Answer:

The cha-cha-cha, is a dance of Cuban origin. It is danced to the music of the same name introduced by Cuban composer and violinist Enrique Jorrin in the early 1950s. This rhythm was developed from the danzón-mambo


10. CALCULATE: Find the amount of power used in
each of the following examples. Show your
calculations.
a. You use a force of 10 N to move a box
100 m in 10 seconds.
b. An athlete lifting weights does 900 J of
work in 1 second.
c. A truck does 30,000 J of work in
15 seconds.
d. A furniture mover uses a force of 150 N to
push a large trunk 5 m across the floor in
5 seconds.

Answers

Answer:

Please find attached pdf

Explanation:

A ball with an initial velocity of 12 m/s is rolling up a hill. The ball accelerates at a rate of -2.6 m/s/s.

Answers

Answer:

4.61 seconds

Explanation:

Given data

Initial velocity= 12m/s

acceleration= -2.6m/s^2

From the given data

we can find the time t

we know that

Acceleration= velocity/time

time= velocity/acceleration

time= 12/2.6

time= 4.61 seconds

4. Determine the net force for the free-body
diagram
Fnorm = 40N
Ffrict =28N
Fapp =44N
Fgrav = 40N

Answers

Answer:

Fapp =44N is the correct answer

Explanation:

Please mark brainliest

Identify the magnetic North Pole of earth's magnet

Answers

Answer:

Using a Compass to Identify Magnet North Pole

Watch carefully at where the compass needle points. The point that normally points to the north pole of Earth should point to one end of the magnet. That end is actually the South pole of the magnet

Explanation:

Hope it help you

Plz mark my answer brainliest✍️✍️

South south south south

A hiker has determined which hiking path to take through a national forest (A is the starting point and B is the final destination). Below is the map of that trail. What does the red line most likely represent?
Total displacement from A to B
Total distance of the path from A to B
Both Total displacement and distance of path from A to B
The shortest path between A and B


In the following equation, Vi represents initial velocity and Vf represents final velocity. The equation for average acceleration is a = (Vf - Vi)/t. Solve this formula for t.
t = a/(Vf - Vi)
t = (Vf - Vi)/a
t = a(Vf - Vi)
t = (Vf - Vi)a

Select the 2 equations that show the same correct relationship between Average Velocity, Distance, and Time.
d = vt
t = v/d
v = t/d
v = d/t

NEED HELP ASAP PLEASE HELP

Answers

Haisjdbdjidwjsnididjhsuwiwkbicidjjss djdjdjbe djdisjs disioqke Baud je eifjenjeoe Didier ejdisjjw ejdisjnw ejdogolwmw. Fjivodkebrjivkenei rjridiwjw tjcijdnfuieiowjfn

bakabilir misiniiizz aciiill

Answers

???????????????????? Sorry

A _____ is a device that uses a smaller current to control a larger current. fuse rheostat relay switch circuit breaker

Answers

Answer:

relay switch

Explanation:

relay switch is the answer

A horizontal force 20N is required to just slide a block of mass 6kg on a horizontal platform. The coefficient of limiting friction between the block and the platform is ?( g = 10 m/s).​

Answers

Answer:

0.33

Explanation:

R= 60N

coefficient of limiting friction = F/R

= 20/60 = 0.33

On Earth, a scale shows that you weigh 585 N. What would the scale read on the Moon (g = 1.60 m/s2)? N

Answers

Answer:

95.51 N

Explanation:

First, find the mass in kg:

Fg = 585 N

Fg = m*g

585 N = m*9.8 m/s^2

m = 59.69 kg

Then, to find your weight (Fg) on the moon, you use the same equation of

Fg(moon) = m*g, except this time g = 1.60 m/s^2

Fg(moon) = 59.69 kg * 1.60 m/s^2

Fg(moon) = 95.51 N

Hope this helps!! :)

The speed of a 1200 kg car increases from 5 to 29 m/s in 12 s.
What force accelerated the car?

Answers

Answer:I think I’m not sure But I think that the force that would be accurated the car would be friction or something like that and to solve the equation you would do f/m

Explanation:

It just makes sense

Answer all of this questions and you will get the brain list

Answers

see below

Explanation:

let One Direction to be the positive and the other direction be negative

let right = positive

left = negative

up = positive

down = negative

a) 100 - 50 = 50N

b) 500 - 330 = 170N

c) 70 - 70 = 0 N

hope this helps

please mark it brainliest

How do prey and predator affect the resources in an environment?

Answers

It keeps the food cycle in place making everything balanced

Which will increase the energy of motion of water molecules?

Answers

A) add heat will be the answer

State galileo's law of inertia​

Answers

Answer:

Galileo's law of inertia states that; if no net force acts on an object, the object maintains its state of motion.

(The first law of motion is also known as Galileo's law of inertia)

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