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]
2 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]2 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 of the following diatomic gases has the shortest bond between its two atoms?
Sunny_sXe [5.5K]
The correct answer is D. N2
8 0
3 years ago
Read 2 more answers
A compound of mercury and oxygen is heated in order to decompose the compound. A 4.08 grams sample of mercury oxide upon heating
arlik [135]

Answer:

HgO (empirical formula)

Explanation:

4.08 - 3.78 = 0.3g (oxygen)

(\frac{4.08}{201})   \:  \:  \:  (\frac{0.3}{16} )

0.02 : 0.02

0.02/0.02 : 0.02/0.02

1 : 1 (ratio)

HgO ( empirical formula)

2HgO ----> 2Hg + O2 ( your equation correct)

7 0
2 years ago
Two moles of nitrogen are initially at 10 bar and 600 K in piston/cylinder device. The system is expanded adiabatically against
scoundrel [369]

Answer:

oooooooooooooooooooooooooooooooooooo

6 0
3 years ago
What is the solution to the problem expressed to the correct number of significant figures
quester [9]

I don't know what the problem is, but here are some rues to help you out:

  1. All non-zero figures are significant
  2. When a zero falls between non-zero digits, that zero is significant.
  3. When a zero falls after a decimal point, that zero is significant.
  4. When multiplying and dividing significant figures, the answer is limited to the number of sig figs equal to the least number of sig figs in the problem.
  5. When adding and subtracting, the answer is limited to the number of decimal places in the number with the least number of decimal places.
4 0
3 years ago
Match the boxes helppppppp
lesantik [10]

Answer:

?

Explanation:

3 0
2 years ago
Other questions:
  • How many moles are present in 418.9 grams of mohr salt
    15·1 answer
  • A student is shown a simple model of particles that make up a liquid,as shown.
    12·1 answer
  • (1 point) The law of conservation of mass lets us know that in every chemical equation you have to have the same number of _____
    7·2 answers
  • Question 9
    5·1 answer
  • What are the charges of the subatomic particles and where are they located in an atom?
    7·1 answer
  • Gallium is a solid metal at room temperature but melts at 29.9 °C. If you hold gallium in your hand, it melts from body heat. Ho
    5·1 answer
  • How does the atomic radius increase?
    8·1 answer
  • Heyy,
    13·1 answer
  • Do you feel that this equation is currently following the law of conservation of mass?
    5·1 answer
  • Silicon is prepared by the reduction of K₂SiF6 with Al. Write the equation for this reaction. (Hint: Can F⁻ be oxidized in this
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!