1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
masha68 [24]
3 years ago
6

Penny has a pencil that is 19 cm long. How long the pencil In inches

Chemistry
2 answers:
JulijaS [17]3 years ago
8 0
You divide 19 centimeters by 2.54 making 19 centimeters equivalent to 7.48 inches
marysya [2.9K]3 years ago
3 0

Answer : The length of pencil in inches are 7.48 inches.

Explanation :

The conversion used form centimeter to inch is :

1in=2.54cm

As we are given that the length of the pencil is 19 cm. Now we have to determine the length of the pencil in inches.

As, 2.54 centimeter length of pencil = 1 inch

So, 19 centimeter length of pencil = \frac{19cm}{2.54cm}\times 1inch=7.48inches

Therefore, the length of pencil in inches are 7.48 inches.

You might be interested in
Anybody know the answer to this
eduard

An atom's mass is determined by its protons and neutrons.

An atom's charge is determined by its number of protons minus it number of electrons.

Atoms become cations, or positively charged when they lose an electron, and since electrons have a negative charge, they become anions, or negatively charged.

Water is a universal solvent.

Carbohydrates (carbs) are used by the body for energy.

Steroids and triglycerides are lipids.

Proteins that catalyze chemical reactions are called enzymes.

8 0
2 years ago
The half-life of nitrogen-13 is 10.0 minutes. if you begin with 53.3 mg of this isotope, what mass remains after 25.9 minutes ha
zimovet [89]

Hello!

The half-life is the time of half-disintegration, it is the time in which half of the atoms of an isotope disintegrate.

We have the following data:

mo (initial mass) = 53.3 mg

m (final mass after time T) = ? (in mg)

x (number of periods elapsed) = ?

P (Half-life) = 10.0 minutes

T (Elapsed time for sample reduction) = 25.9 minutes

Let's find the number of periods elapsed (x), let us see:

T = x*P

25.9 = x*10.0

25.9 = 10.0\:x

10.0\:x = 25.9

x = \dfrac{25.9}{10.0}

\boxed{x = 2.59}

Now, let's find the final mass (m) of this isotope after the elapsed time, let's see:

m =  \dfrac{m_o}{2^x}

m =  \dfrac{53.3}{2^{2.59}}

m \approx \dfrac{53.3}{6.021}

\boxed{\boxed{m \approx 8.85\:mg}}\end{array}}\qquad\checkmark

I Hope this helps, greetings ... DexteR! =)

3 0
3 years ago
Denver, Colorado (altitude above sea level is 5,280 ft) has an atmospheric pressure of 633. mm Hg. Calculate the boiling point o
Fed [463]

Answer:

T2 = 94.6 C

Explanation:

Use Clausius-Clayperyon equation.

ln P1/P2 = ∆Hvap/R (1/T2 - 1/T1) where R = 8.314 J/mol-K and T is in degrees K

P1 = 760 mmHg

P2 = 630 mmHg  

T1 = 373 K

T2 = ?

∆Hvap = 40.7 kJ/mole

R = 0.008314 kJ/mole-K (NOTE: change R to units of kJ)

Plug in and solve for T2

ln 760 mmHg/630 mmHg = 40.7 kJ/mole (1/T2 - 1/373K)

T2 = 367.74 K = 94.6 C

8 0
3 years ago
Which type of circuit can have many loops for resistors (light bulbs) to attach to?
Maslowich
A circuit with many paths for the current to travel through and not simply one is classified as a parallel circuit. Here the circuit can have many loops of resistors or light bulbs that can be attached.
3 0
3 years ago
Which of the following is soluble in water?
Nina [5.8K]
I hope this answers helps it’s D
8 0
3 years ago
Other questions:
  • 26)Predict the products of the following chemical reaction
    5·1 answer
  • Where does the peak intensity need to fall on the spectrum for a very intense star?
    13·2 answers
  • ?<br>Which statement about energy transfer in a wave is ture ​
    13·1 answer
  • Which sequence lists types of materials in order from least conductive to most conductive?
    13·2 answers
  • Chemist and physicist marie curie became famous for her pioneering research on radioactivity. What are the two chemical elements
    13·2 answers
  • 50.0 g of Potassium chloride reacts with 50.0 g of oxygen to produce KCIO3. After writing
    14·1 answer
  • What is the pH of a solution with a [H+] = 1.0 x 10-5
    7·1 answer
  • Balance the Following Equations: SiCl4 + H2O = SiO2 + HCl
    8·1 answer
  • Blank measurements are useful for determining buoyancy and identifying relationships between substances.
    13·1 answer
  • Why does radiation decrease over time?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!