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Answer:

Only the third option has the same number of each size and color circles on either side of the arrow.

Explanation:

I believe it represents the dissolution of two molecules of hydrogen peroxide into two water molecules and an oxygen gas molecule.

The first one balances oxygen but changes sulfur with either carbon or nitrogen

The second one needs 5 oxygen gas pairs instead of a single one on the left to balance the right side. Represents oxidation of a propane molecule if given enough oxygen.

The fourth one has an extra nitrogen on the left side. The hydrogen is balanced. Making amonia.

Answer:

person is accelerating downwards

Explanation:

We are told that the force of the person standing on the elevator is 800 N acting downwards.

We are also told that the upward force of the elevator on the person is 600 Newtons.

This means that Upward force is lesser than downward force and thus the person is accelerating downwards

Answer: the final velocity and final velocity velocity can also be written as we It went to one route A. V. Of X. Care plus movie. Why is here? This is a vision number two. And this is a revision number one food equation and one into to get we want to and wrote. We now takes scared plus we not scared away helpless to And by and the horizontal and the vertical component which are we know scare X is equal to we not cost it and we're not scared by going to we not scientific putting these value. Immigration number three. We get we will too. Are we not scared? I got scared to to less. We not scare Science square theater plus two. Why? So this we equal to he went to work and rude. We're not scared people to got scared he to less science security theater Last two. A. Y. Sure we get we s we're not scared into I. Plus to A Y. So we is able to. And road we now scared. Plus two. Am I. So this is a vision number four. And we are given me an artist 14 m purse again. And why he has given us. Uh huh. three m. So we can we find out by putting this value innovation number for the disk 14 scared. Uh huh. Plus To into -9.8 into three. We get to be It will do 11.7. Me did last

Explanation:

Hi there!

We can begin by calculating the total WORK done using the equation:

Power · time = Work

650 · 15 = 9750 J

We know that:

Work = Force · displacement (W = Fd), so:

W/d = F

9750/30 = 325 N

Answer:Distance. Time. If a car travels 400m in. 20 seconds how fast is it going? Speed = Calculate the speed: If you move 50 meters at a speed of 10  2 miles in 15 minutes.

I she is running 8 miles every 60 minutes (which is 1 hour), so she is running 8 miles per hour.

we can see that her pace is 7.5 minutes per mile.

hope this helps

Answer:

B

Explanation:

Answer:

Option A is correct.

Explanation:

At the temperature [tex]10^{7}K[/tex] the hydrogen atoms fuse to form helium thus a large amount of heat is produced and stars are formed.

Due to gravitational pull the particles and the molecules of gases become condense and by which it becomes hot. The process goes unless the temperature of the core becomes 10,000,000K.

At this temperature, the fusion takes place and energy is released.

Thus the star shines.

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Answer:

Area=1.5(1.5)=2.25m^2

Force of gravity=10N

\begin{gathered}\\ \sf\longmapsto Pressure=\dfrac{Force}{Area}\end{gathered}

⟼Pressure=

Area

Force

\begin{gathered}\\ \sf\longmapsto Pressure=\dfrac{10}{2.25}\end{gathered}

⟼Pressure=

2.25

10

\begin{gathered}\\ \sf\longmapsto Pressure=4.4Pa\end{gathered}

⟼Pressure=4.4Pa

Answer:

Acceleration is the rate at which the velocity changes .

Answer:

The cyclist rode the first 26​-mile portion of his workout at a constant speed.

Time = distance/speed

Time taken to ride through the first portion is

26/x

For the 18​-mile cool down portion of his​ workout, he reduced his speed by 4 miles per hour. It meas that his speed during the cool down portion is (x - 4) mph. Time taken to ride through the cool down portion is

18/(x - 4)

Since each portion of the workout took the same time, it means that

26/x = 18/(x - 4)

Cross multiplying, it becomes

26(x - 4) = 18x

26x - 104 = 18x

26x - 18x = 104

8x = 104

x = 104/8

x = 13 mph

His speed during the cool down portion is

13 - 4 = 9 mph

Explanation:

not simple

Answer:

[tex]\huge\boxed{\sf P = 10\ Watts}[/tex]

Explanation:

Given:

Energy = E = 200 J

Time = t = 20 s

Required:

Power = P = ?

Formula:

P = E / t

Solution:

P = 200 J / 20 s

P = 10 Watts

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

Answer:

The study of mind and behavior is known as psychology. Psychology is the scientific study of both conscious and unconscious events, as well as feelings and thoughts. It's a vast academic field that straddles the scientific and social sciences.

A solid maintains its volume and shape.

It will take 6.42 s for the ball that is dropped from a height of 206 m to reach the ground.

From the question given above, the following data were obtained:

Height (H) = 206 m

NOTE: Acceleration due to gravity (g) = 10 m/s²

The time taken for the ball to get to the ground can be obtained as follow:

H = ½gt²

206 = ½ × 10 × t²

206 = 5 × t²

Divide both side by 5

[tex]t^{2} = \frac{206}{5}\\\\ t^{2} = 41.2[/tex]

Take the square root of both side

[tex]t = \sqrt{41.2}[/tex]

Therefore, it will take 6.42 s for the ball to get to the ground.

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Answer:

144 joules

Explanation:

v=initial velocity+(acceleration × time)

v=0+(4×3)

v=12m/s

k.e =0.5 × mass × velocity^2

=0.5 × 2 × 12^2

=1 × 144

=144 joules

Answer:

The correct answer would have to be

C. Mass of the ball

Answer:

C.) The Distance DH = 1.5 lambda

Explanation:

This statement C.) is false, because it does not count as the 1.5 wavelength, it is less than 1 wavelength.

Answer:

Explanation:

F = ma = mΔv/Δt = 1000(27 - 0)/(7.0 - 0) = 3,857.1428...

b. F = 3.9 x 10³ N

Answer:

Why is an unmagnetized iron object attracted to a magnet?

Magnets attract iron due to the influence of their magnetic field upon the iron. When exposed to the magnetic field, the atoms begin to align their electrons with the flow of the magnetic field, which makes the iron magnetized as well.

Explanation:

An un-magnetized iron object attracted to a magnet because each atom of iron object behaves like a complete magnate having north and south pole of equal strength.

The electron revolving around the nucleus of iron atom are equivalent to small current loop having magnetic dipole.

When a magnetic material is positioned close to a magnet, it induces a density of magnetic dipole moments known as magnetization.

The motion of electrons in atoms, or the spin of the electrons or the nuclei, is what produces a material's magnetic properties; the magnetic effect can also be created by running an electrical current through the material.

When an un-magnetized iron object attracted to a magnet; every iron atoms experiences a magnetic attraction force due to magnetic field of the magnet and the atoms try to aliened themselves in such way that they can experience optimum attraction.

Learn more about magnets here:

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Answer:

Explanation:

F = ma = 2.0(5) = 10 N

Answer:

The first option sodium and chloride

please give brainliest

Salt is made up of what elements?

= Sodium Chloride....

Answer:

c

Explanation:

pls give brainliest have a great day

TDS and ppm are common units used to measure the quantity of substance in the water, therefore the correct answer is option A.

A unit of measurement is a specified magnitude of a quantity that is established and used as a standard for measuring other quantities of the same kind. It is determined by convention or regulation.

Common units used to measure the amount of material in water are TDS and part per million.

As given in the problem we have to find out for what measurement, the units TDS (Total dissolved solid )and ppm (parts per million) are used.

The total dissolved solid and parts per million are used to measure the amount of substance present in the water, therefore the correct answer is option A.

To learn more about the unit of measurement here, refer to the link given below ;

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Explanation:

Cccccc for sure(⌐■-■)Iam a genius

The scientific statement here is option B , there are things we will never know about matter is filled with undetectable particles. This statement is describing the nature of a matter in a scientific way.

A scientific statement is a description about any phenomenon or properties of any substance in a scientific way. That may include theoretical  predictions, universally accepted things, observations etc.

Most of the scientific statements are stated based on the results of  well designed scientific investigations and are communicated through various scientific journals and articles.

Here, the statement that describes the nature of matter and its composition is an example of scientific statement. All of the other statements are not scientific.

Find more on  scientific statements:

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Explanation:

The mass of the soda can is

[tex]m = \dfrac{W}{g} = \dfrac{4.7\:\text{N}}{9.8\:\text{m/s}^2} = 0.48\:\text{kg}[/tex]

The weight of this same soda can on Planet X is

[tex]W = mg_p = (0.48\:\text{kg})(1.82\:\text{m/s}^2) = 0.87\:\text{N}[/tex]

Answer:

terms of refraction and wavelength, why dispersion of white light happens.

Explanation:

hope it helps