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
vagabundo [1.1K]
2 years ago
10

There is a bell at the top of a tower that is 45m high. The bell weighs 190N (N=Newtons). The bell has potential energy. The for

mula for Potential energy is PE = mgh or mass x gravity x height. Gravity is 9. 8 m/s^2. What is the bell’s potential energy?
Chemistry
1 answer:
fiasKO [112]2 years ago
5 0

Since the bell weighs 190 N and is 45 m high, the bell’s potential energy is 8550 J

To answer the question, we need to know what potential energy is.

<h3>What is potential energy?</h3>

This is energy due to position. It is given by PE = mgh where

  • m = mass,
  • g = acceleration due to gravity and
  • h = height of object.

Also, W = mg = weight of object.

So, PE = Wh

<h3>The bell's potential energy</h3>

Now, given that the bells weight 190 N and is 45 m high,

  • W = 190 N and
  • h = 45 m.

So, PE = Wh

= 190 N × 45 m

= 8550 Nm

= 8550 J

So, the bell’s potential energy is 8550 J

Learn more about potential energy here:

brainly.com/question/24933254

You might be interested in
A bicycle pump contains 250 mL of air at a pressure of 102 kPa. If the pump is
CaHeK987 [17]

Considering the Boyle's law, the new volume becomes 1,148,344.444 mL or 1148.34 L.

<h3>Boyle's law</h3>

Boyle's law relates pressure and volume, stating that the volume occupied by a given mass of gas at constant temperature is inversely proportional to pressure. This means that if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases.

Boyle's law is expressed mathematically as:

P×V=k

Now it is possible to assume that you have a certain volume of gas V1 which is at a pressure P1 at the beginning of the experiment. If you vary the volume of gas to a new value V2, then the pressure will change to P2, and the following is true:

P1×V1=P2×V2

<h3>New volume</h3>

In this case, you know:

  • P1= 102 kPa= 10335.1 atm (being 1 kPa= 101.325 atm)
  • V1= 250 mL
  • P2= 2.25 atm
  • V2= ?

Replacing in the Boyle's law:

10335.1 atm ×250 mL= 2.25 atm×V2

Solving:

(10335.1 atm ×250 mL)÷ 2.25 atm= V2

<u><em>1,148,344.444 mL= 1148.34 L=  V2</em></u>

Finally, the new volume becomes 1,148,344.444 mL or 1148.34 L.

Learn more about Boyle's law:

brainly.com/question/4147359

#SPJ1

3 0
2 years ago
What does it mean if an element has 8 valence electrons? O A. It has 8 protons. O B. It has a full octet. O O O O C. It reacts v
Goshia [24]

Answer:

i belive its c

Explanation:

Atoms of group 18 elements have eight valence electrons (or two in the case of helium). These elements already have a full outer energy level, so they are very stable. As a result, they rarely if ever react with other elements. Therefore, it is very reactive and gives up electrons in chemical reactions.

4 0
3 years ago
Read 2 more answers
Is iron conductive in water?
Rudik [331]

Answer: yes

Explanation: it is always in a conductive state

4 0
2 years ago
Read 2 more answers
What word or two-word phrase best describes the shape of the fluoroform molecule?
Vlad [161]

Answer : The shape of the fluoroform molecule is Tetrahedral.

Explanation :

First we have to calculate the Hybridization of the molecule by formula,

\text{Number of electrons} = \frac{1}{2}[V+H-C+A]

where,

V = Number of valence shell electron in central atom

H = Number of neighboring monovalent atom

C = charge of cation

A = charge of anion

The central atom in this molecule is Carbon, it has 4 electrons in their valence shell.

The neighboring monovalent atoms are one Hydrogen atom and three Fluorine atom.

There is no charge of cation and anion on the given molecule.

V = 4

H = 1 Hydrogen atom + 3 fluorine atom = 4

C = 0

A = 0

By the above hybridization formula, we get

\text{Number of electrons}= \frac{1}{2}[4+4-0+0] = 4

The number of electron pair = 4

The number of lone pair = 0

The number of electrons is 4, this means that the hybridization is sp^{3} and the geometry of the molecule is Tetrahedral.

The geometry of the molecule is shown below.


3 0
3 years ago
A1(NO3)3 name, formula for cation an formula for anion
Nostrana [21]

Answer:

Explanation:

The name of the compound is:

       Al(NO₃)₃ is Aluminium nitrate

Aluminium nitrate is an ionic compound formed when Al loses 3 valence electrons to the nitrate.

Formula of cation: A cation is a positive charged specie

              Al³⁺

 Formula of anion: Anion is a negatively charged specie;

             NO₃⁻

7 0
3 years ago
Other questions:
  • Which is least likely to cause eutrophication?
    5·2 answers
  • Which of these substances is the least acidic?​
    5·2 answers
  • Write the word equation for the following reaction:
    12·1 answer
  • A solution of malonic acid, H2C3H2O4 , was standardized by titration with 0.1000 M NaOH solution. If 21.09 mL of the NaOH soluti
    13·1 answer
  • Can anyone please summarize the meaning of inorganic chemistry?
    12·1 answer
  • 50 POINTS
    14·2 answers
  • The table shows the densities of four samples, each of the same volume.
    15·2 answers
  • Which statement best describes the distances between planets in the solar system?
    8·1 answer
  • A sample of gas at 10.0 ATM and 5.0 °C increases in tempature of 35 °C. If the volume is unchanged, what is the new pressure?
    8·1 answer
  • State at least three different properties of metallic compounds?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!