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
OlgaM077 [116]
3 years ago
9

if a ball of 50kg falls from a height 20m to the ground. Calculate the potential energy. ( g= 10m/s²)

Chemistry
1 answer:
Xelga [282]3 years ago
8 0

Answer:

10000 Joules

Explanation:

P.E=MGH

= 50*20*10

= 10000

You might be interested in
Aqua regia, a mixture of HCl and HNO₃, has been used since alchemical times to dissolve many metals, including gold. Its orange
marissa [1.9K]

Aqua regia is an oxidative mixture that is highly corrosive and is composed of hydrochloric acid and nitric acid. The Ea (rev) for the reaction is 3 kJ.

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

The activation energy is the minimum required energy by the reactant to undergo changes to form the product. The activation energy of the reverse reaction is given by the difference in the production state and transition state.

It is given as,

Ea (rev) = Ea (fwd) − ΔHrxn

Given,

ΔH° = 83KJ

Ea (fwd) = 86 kJ/mol

Substituting the values above as:

Ea (rev) = 86 - 83

= 3 kJ

Therefore, the activation energy of the reverse reaction is 3 kJ.

Learn more about activation energy, here:

brainly.com/question/14287952

#SPJ4

4 0
1 year ago
HELP!!!!!<br> i need help on this chemistry question
Alina [70]

Answer: electronic configuration

Explanation:

8 0
3 years ago
In each of the following blanks, only enter a numerical value.
tatiyna

Answer:

1) 1,... 2

2) 18

3) n= 3 and I=1

Explanation:

1) when l= 0, its an s-sub-level, and only 1 orbital is possible which can carry only 2-electrons

2) the maximum number of electron is given by 2n^2= 2×3^2= 18

3) in 3p, the coefficient of p is the value of n= 3 and l-value of P is 1

5 0
3 years ago
What would you use to mesuasee the height of the tree
Zielflug [23.3K]

Answer:

if you mean "measure" you can use many things. from inches to meters. sometimes if they are big they are measured in "stories". but the smaller the unit is. the harder it is and longer it takes to measure it

7 0
3 years ago
Which of the following is
AleksandrR [38]

Answer:

distance and time are needed to find velocity

6 0
3 years ago
Other questions:
  • Cual es el calor específico de una sustancia que tiene una masa de 15 g y una capacidad térmica de 0.550 calC
    14·1 answer
  • Consider the following reaction at equilibrium: 2 NH3(g) ⇄ N2(g) + 3 H2(g) What does Le Chatelier's principle predict will happe
    10·1 answer
  • Judging by the electron domain geometry, which type of hybrid orbitals does this molecule have? s sp sp2 sp3
    5·2 answers
  • Name the functional group in the following molecule:<br><br> H-C(Triple Bond)C-CH2CH3
    15·1 answer
  • What products would you expect from a reaction between hcl and koh?
    15·1 answer
  • The population of the world nearly doubled between the years of 1965 and 2000.
    13·1 answer
  • What is the pOH of a substance with a Hydrogen concentration of 3.45 x 10-9. suppose to be a small 9
    8·2 answers
  • 1 or 2 topics or two lessons should be explained in an illustrated childrens book minimum of 10 pages must have 3 or more senten
    5·1 answer
  • Which term best describes this reaction? O addition. O Condensation. O elimination. O substitution
    12·1 answer
  • Introduction:
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!