The specific heat capacity of water is 4,200 Joules per kilogram per degree Celsius (J/kg°C). This means that it takes 4,200 J to raise the temperature of 1 kg of water by 1°C. Lead will warm up and cool down faster because it doesn't take much energy to change its temperature.

what is molecular formula give short answer

**Explanation:**

molecular formula consists of the chemical symbols for the constituent elements followed by numeric subscripts describing the number of atoms of each element present in the molecule. The empirical formula represents the simplest whole-integer ratio of atoms in a compound.

**Answer:**

The symbollic representation of a molecule of an element or a compound present in a molecule is called molecular formula.

For example: molecular formula of sodium chloride is NaCl.

Round 0.010229 to four sig figs

It would be **0.01023**.

0.010229 has 5 sig. fig.'s (leading zeros do not count)

So rounding to 4 sig. fig.'s is just a matter of rounding off the last digit, which leaves you with 0.01023.

Slove these problem physics

**Answer:**

element name = neon

no of proton = 10

no. if neutron = 9

atomic no. = 10

atomic weight = 20.17179u

it lies in group 18 and period 2

it is nonmetal because it is a noble gas .

hope this helped you ☺️

When is the pressure of the man on the ground more – lying position or standing

position? Explain.

Hi,

**The man on the ground in standing position has more pressure**. This is because when he stands, only his legs are in contact with the ground. While lying, his body is more in contact with the ground, therefore, he exerts less pressure.

To the point, a man standing position on the ground had more pressure.

More is the area of contact, less is the pressure efforted.

Thank you...

why is there potential for wind energy in the upper himalayanx

**Answer:**

Favorable sites include the tops of smooth, rounded hills; open plains and water; and mountain gaps that funnel and intensify wind. Wind resources are generally more favorable for electricity generation at higher elevations above the earth's surface

Two astronomers are viewing temperature data from each of the sun's layers, but the layers aren't identified. Describe one way the scientists can use temperature to identify which layer they are studying.(1 point) The highest temperatures are from the corona. The highest temperatures are from the corona. The lowest temperatures are from the photosphere. The lowest temperatures are from the photosphere. The lowest temperatures are from the core. The lowest temperatures are from the core. The highest temperatures are from the radiative zone.

Here we can study the different **temperatures** of each one of the** layers **of the sun.

We will find that the way that the scientist can identify which layer are they studying is** "**The lowest temperatures are from the photosphere."

A brief description of the** temperature** of each** layer **is:

**Center of the sun**: about 15 million K

**Radiative Zone**: Goes from 7 million K to 2 million K.

**Convection Zone**: goes from 2 million K to 5800K

**Photosphere**: Is in average 5800 K , but there are sunspots with lower temperatures, of around 3800 K.

**Chromosphere**: goes from 4300 K to 8300 K

**Corona**: Around 2 million K.

So now we can analyze each of the options to see which ones make sense.

A) The highest **temperatures** are from the **corona.**

This is false, we can see that in the **center **and in the **radiative zone** we have larger** temperatures **than in the **corona**.

B) The lowest** temperatures** are from the** photosphere**.

While on average the** temperature **of the **photosphere** is larger than the smaller** temperature **of the **chromosphere**, in the** photosphere** we have the sunspots, and there we have the smallest **temperatures **in the whole sun, so this is true.

C) The lowest **temperatures** are from the core (or **center**).

Clearly false, there we have the larger** temperatures**.

D) The highest **temperatures** are from the **radiative zone**.

Again false, the larger** temperatures** are in the **center.**

So the only true option is "The lowest temperatures are from the photosphere."

If you want to learn more, you can read:

https://brainly.com/question/12117482

Answer:

The lowest temperatures are from the photosphere

Explanation:

I just took this quick check on connexus

in the Newton's Third Law of Motion state three characteristics

**Answer:**

*Newton's third law: If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A. This law represents a certain symmetry in nature: forces always occur in pairs, and one body cannot exert a force on another without experiencing a force itself.*

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A dog runs from his home & goes 400 m around the block before reaching back home. What is the dog's total distance & displacement?

Distance: 0 m & displacement: 400m

Distance: 400 m & displacement:0m

Distance: Om & displacement:4 m

Distance: 4 m & displacement: Om

**Answer:**

A dog runs from his home & goes 400 m around the block before reaching back home. What is the dog's total distance & displacement?

Distance: 400 m & displacement:0m

**Explanation:**

Option B is the answer.

Hope it helps.

Between which types of elements do ionic bonds occur, and how do electrons act within the bond

o nonmetals and nonmetals, electrons shared

o metals and metals, electrons freely moving

O metals and nonmetals, electrons transferred

nonmetals and metals, electrons shared

Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals. An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions.

the real answer is

**O metals and nonmetals, electrons transferrednonmetals and metals, electrons shared**

After the experiment, scientists organize and (blank) the data.

Does anyone know what goes in the blank? Im doing a crossword puzzle and I need help, please. (/w\)

**Answer:**

analyze

**Explanation:**

Metallic bonds are responsible for many properties of metals, such as conductivity. Why is this possible?

**Answer:**

The bonds can shift because valence electrons are held loosely and move freely.

**Explanation:**

Ill put the rest of the answers in the comments

Answer:

The bonds can shift because valence electrons are held loosely and more freely.

Plsss helppp me I have a lot of questions pls help me I will mark brainliest!!!

**Answer:**

kilo means 1000

2a. 0.1

b. 100

c.0.01

d. 0.001

3a.km

b.mL

d.cg

e.mm

g. g

h.kL

What is the kinetic energy of a bicycle with a mass of 16 kg traveling at a velocity of 5 m/s

**Answer:**

200J

**Explanation:**

K.E=½mv²

K.E=½×16kg×5m/s²

K.E=8kg×25

K.E=200J

what will happen to the gravitational force between two bodies if the distance between them is halved keeping their masses constant

help me

**Answer:**

if the distance between them is halved then gravitational force will be doubled....

Which of the following is true about scientific laws?

**Answer:** Scientific theories are never proven.

**Explanation:**

If a 2kg metal slug is heated with 1275J of energy which raises its temperature 15K, what is the metal's specific heat capacity?

**Answer****:**

**42.5J****/****kgk**

**Just**** ****use**** ****the**** ****formula**

**C**** ****=**** ****Q****/****m**** ****x**** ****change**** ****in**** ****temp**

how is light reflected from a prism

**Answer:**

White light entering a prism is bent, or refracted, and the light separates into its constituent wavelengths. Each wavelength of light has a different colour and bends at a different angle. The colours of white light always emerge through a prism in the same order—red, orange, yellow, green, blue, indigo, and violet.

White light entering a prism is bent, or refracted, and the light separates into its constituent wavelengths. Each wavelength of light has a different colour and bends at a different angle. The colours of white light always emerge through a prism in the same order—red, orange, yellow, green, blue, indigo, and violet.

A 10cm tall object is placed perpendicular to

the principal axis of a convex lens of focal length

30cm. The distance of the object from the line is

20cm.find the i)position ii)nature and iii) size of

the image formed.

My answer is in the picture

Swipe the pictures to see the others

State which type of variable is plotted on the x-axis

and which type is plotted on the y-axis.

**Answer:**

Often the independent variable is plotted on the x-axis - and example might be time (an experiment where time is measured by a watch or an independent mechanical device)

The dependent variable is often plotted on the y-axis - and example here might be the velocity or the acceleration,

It may be the responsibility of the experimenter to determine the value of the dependent variable by some type of measurement

Which statement is true?

A. When a gas condenses to a liquid, it absorbs energy.

B. When water boils, it releases energy.

C. When ice melts, it absorbs energy.

D. When water freezes, it absorbs energy.

**Explanation:**

The correct answer is option B

**Answer:**

C. When ice melts, it absorbs energy.

**Explanation:**

When ice melts, it is getting hotter by absorbing energy and changes from a solid to a liquid. This is an endothermic reaction.

Nikki has a momentum of 45 Kilogram meters per second and a mass of 30 Kilograms. What is her velocity?

**Answer:**

45/30

**Explanation:**

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Nikki has a **momentum **of 45 Kilogram meters per second and a **mass **of 30 Kilograms. then her velocity would be 1.5 meters per second

It can be defined as the **product **of the mass and the speed of the particle, it represents the combined effect of mass and the speed of any particle, and the momentum of any particle is expressed in Kg m/s unit.

Mathematically the formula of the **momentum **is

P = mv

where P is the momentum of the particle

m is the **mass **of the particle

v is the velocity by which the particle is moving

As given in the problem Nikki has a momentum of 45 Kilogram meters per second and a mass of 30 Kilograms

P = 45 Kilogram meters per second

m = 30 Kilograms

By substituting the values of the momentum and the mass in the **formula **of the momentum

P = mv

45 = 30 ×v

v = 45/30 meters per seconds

v = 1.5 meters per seconds

Thus, **Nikki **weighs 30 kilograms and **moves **at a 45 kilogram per the second momentum. subsequently, her **velocity **would be 1.5 meters per second.

Learn more about **momentum **from here

brainly.com/question/17662202

#SPJ4

pls help question are in the picture

i think the answer is 1.81

The larger the number of charges flowing through the wire, the larger is the ____________ flowing in the wire.

**Answer:**

*The **larger **the **number** **of **charges **flowing** **through** **the **wire,**the **larger **is **the **current** **flowing** **in **the **wire.*

**Explanation:**

*if **the **wire **is **large **then **large **amount** **of **current** **flows **through** **the **circuit.**b**u**t** **if **the **wire **is **small **then **a **smaller** **amount** of** **current** **will **pass **through**.*

*I **hope** this** helps*

plzz can anyone solve this

plzzzz guys tomorrow is my exam ..

plzz

**Answer:**

i hope it helped U

stay safe stay happy

Please help ???????.......

**Answer:**

300,000=3×10^3

.000012=1.2×10^-6

ASAP If the initial pressure of a gas is 100 kPa, initial volume is 1.0 L, and final pressure is 25 kPa, what is the final volume?

When no one answers your question...

The final **volume** is **4.0 liters**.

We can calculate the final **volume **with **Boyle's law**:

[tex] P_{i}V_{i} = P_{f}V_{f} [/tex] (1)

*Where:*

[tex] P_{i}[/tex]: is the initial **pressure **= 100 kPa

[tex] V_{i}[/tex]: is the initial **volume **= 1.0 L

[tex]P_{f}[/tex]: is the final pressure = 25 kPa

[tex]V_{f}[/tex]: is the final volume =?

Hence, the **final volume** is:

[tex] V_{f} = \frac{P_{i}V_{i}}{P_{f}} = \frac{100 kPa*1.0 L}{25 kPa} = 4.0 L [/tex]

Therefore, the **final volume** is **4.0 liters**.

You can learn more about Boyle's law here: https://brainly.com/question/21184611?referrer=searchResults

I hope it helps you!

7. A train is traveling with an initial velocity of 20.1 m/sec. If the brakes can apply a maximum

acceleration of -0.0500 m/sec”, how long will it take the train to stop?

The **time **that takes for the train that is traveling with an initial **velocity **of 20.1 m/s to stop is **402 seconds**.

The **time **that will take for the train to stop can be calculated with the following kinematic equation:

[tex] v_{f} = v_{i} + at [/tex] (1)

*Where:*

[tex] v_{f}[/tex]: is the final **velocity **= 0 (when it stops)

[tex] v_{i}[/tex]: is the intial **velocity **= 20.1 m/s

a: is the **acceleration **= -0.0500 m/s²

t: is the **time **=?

By solving equation (1) for t, we have:

[tex] t = \frac{v_{f} - v_{i}}{a} = \frac{0 - 20.1 m/s}{-0.0500 m/s^{2}} = 402 s [/tex]

Therefore, it will take **402 seconds** for the train to stop.

To find more about acceleration and velocity go here: https://brainly.com/question/2136991?referrer=searchResults

I hope it helps you!

11 An unstretched spring is 12,0 cm long. A load of 5.0N stretches it to 15.0cm. How long will it be under a load

of 15N? (Assume that the spring obeys Hooke's law.)

**Answer: Approximately 22 cm**

=========================================================

Explanation:

The unstretched spring is 12.0 cm long. When adding a load of 5.0 N, it stretches to 15.0 cm. This is a displacement of 15.0 - 12.0 = 3.0 cm, which is the amount the spring is stretched.

Convert this displacement to meters (so that it fits with the meters unit buried in Newtons).

3.0 cm = (3.0)/100 = 0.03 m

Apply Hooke's Law to find the spring constant k

F = -kx

5.0 = -k*(0.03)

k = -(5.0)/(0.03)

k = -166.667 approximately

Now we must find the displacement x when F = 15 newtons

F = -kx

-kx = F

x = F/(-k)

x = -F/k

x = -15/(-166.667)

x = 0.089 approximately

x = 0.1

The displacement to one decimal place is about 0.1 meters, which converts to 100*0.1 = 10 cm

So the spring will be stretched to about 12cm+10cm = **22 cm**

Give an example for each of the following, where the force:

a) changes the direction of a moving object.

b) changes the speed of a moving object.

c) changes the shape and size of an object.

d) stops a moving object.

e) moves a stationary object.

**Explanation:**

a). The gravitational forces between the Earth and the Sun bends the Earth's motion along a curving path instead of a straight line.

b). The gravitational forces between the Earth and a falling rock make the rock fall faster and faster.

c). The force of a pressurized stream of hot air makes a balloon get rounder and bigger.

d). The gravitational forces between the Earth and a rock tossed straight up make the rock go slower and slower, and eventually stop. (In the next instant, it starts falling, as described in answer-b.))

e). The acoustic and emotional force of your mother's voice 15 minutes before the school-bus arrives causes you to turn over, sit up, and start putting on your socks.

what are the major parts of the ear?

**Explanation:**

1.The parts of the ear include:

External or outer ear, consisting of: Pinna or auricle. This is the outside part of the ear. ...

2.Tympanic membrane (eardrum). The tympanic membrane divides the external ear from the middle ear.

3.Middle ear (tympanic cavity) , consisting of: Ossicles. ...

4.Inner ear , consisting of: Cochlea.

**Explanation:**

The major parts of ear are:-

1) Outer ear

PinnaExternal auditory canalTympanic membrane2) Middle ear

MalleusIncusStapes3) Inner ear

CochleaSemicircular canalsVestibule
describe how social justice concept could help to fight social challenges
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