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
neonofarm [45]
3 years ago
10

An object has a total mechanical energy of 150 J. At point A, the object has a kinetic energy

Chemistry
1 answer:
nika2105 [10]3 years ago
8 0

Answer:

60 J

Explanation:

The law of conservation of energy states that energy is neither created nor destroyed, just converted into different forms. This means the total mechanical energy of the object at point A will be the same as the total mechanical energy at point B, and the question tells us the total of that mechanical energy is 150 J. Note we are assuming no energy is lost from the system as heat.

At point B, if the potential energy is 90 J, the remainder of the 150 J total must be kinetic energy. KE = 150 J - 90 J = 60 J.

You might be interested in
Which element has properties of both metals and nonmetals?
PilotLPTM [1.2K]
<span>Metalloids have the properties of metals and nonmetals.</span>
8 0
3 years ago
Write a mechanism for the esterification of propanoic acid with 18O-labeled ethanol. Show clearly the fate of the 18O label. (b)
tatuchka [14]

Answer:

See explanation and images attached

Explanation:

a) In the mechanism for the acid catalysed esterification of propanoic acid using ethanol, we can see that the first step is the protonation of the acid followed by nucleophillic attack of the alcohol. Loss of water and consequent deprotonation regenerates the acid catalyst. We can see the fate of the 18O labelled ethanol in the mechanism shown.

b)  In the second mechanism, an unnamed ester is hydrolysed using an acid catalyst. The attack of the acid and subsequent nucleophillic attack of water labelled with 18O leads to the incorporation of this 18O into the product acid as shown in the mechanism attached to this answer.

5 0
3 years ago
Help me please omg I don’t know
Anna35 [415]

Answer:

5 1 2 4and 3 this is correct way

8 0
2 years ago
What is this and explain why please:)
Yuliya22 [10]

Answer:

C Atomic number

Explanation:

The question is typo it should be 19 is the____ of pottasium. The atomic number is the number on top

8 0
2 years ago
Read 2 more answers
if 10 moles of A and 7.5 moles of B are taken in a flask, identify the value of moles of A4B3 produced in a reaction.​
natta225 [31]

The number of moles of A4B3 produced in a reaction is obtained  by stoichiometry.

The term stoichiometry refers to mass-mole relationship. The first step in solving this problem is by writing the correct reaction equation as follows;

4A + 3B -------> A4B3

If 4 moles of A yields 1 mole of A4B3

10 moles of A yields 10 * 1/4 = 2.5 moles of A4B3

Therefore, 2.5 moles of A4B3  is produced.

Learn more: brainly.com/question/9743981

3 0
2 years ago
Other questions:
  • You would like to induce a transversion mutation into a sequence of dna. Which type of chemical mutagen would give you the best
    15·1 answer
  • A 50.0 mL solution of 0.141 M KOH is titrated with 0.282 M HCl . Calculate the pH of the solution after the addition of each of
    7·1 answer
  • Which of the following is the name of a metal?
    12·1 answer
  • Which statement regarding liquids is true? 1.can be converted to solids by adding energy in the form of heat 2.occupy a definite
    8·1 answer
  • How could you cause a chemical change in vinegar
    12·1 answer
  • 0.159 mol 2.25 M = A L of HCI
    14·2 answers
  • Base your answer on the information below. in liquid water, an equilibrium exists between h2o() molecules, h+(aq) ions, and oh–(
    11·1 answer
  • Which two have to do with Movement of Galaxies? (pick 2)
    11·1 answer
  • Energy that is stored due to an object's height above the ground is __
    14·1 answer
  • 2. A plant growing in response to the sunlight.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!