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
patriot [66]
2 years ago
7

ANSWER THIS QUESTION!!!! PLSSSSS!!! NEED HELP!!!!! 10 POINTS

Physics
1 answer:
Olegator [25]2 years ago
6 0

Answer:

A. it's the only answer that makes sense. if I'm wrong sorry

You might be interested in
G problem 2.68 determine the magnitude of the resultant force.
laila [671]
Abbs as sbsbbbdb sbsb
7 0
3 years ago
Determine the mechanical energy of this object; a 1-kj ball rolls on the ground at 2m/s
Daniel [21]
If you still need the answer it is B. 2 J
6 0
2 years ago
A book is falling from the top shelf of a bookcase. Which statement correctly describes the change in the energy of the book? a.
valentina_108 [34]

Answer:

Correct answer letter b.

Explanation:

When the book is on the top shelf of the bookcase, it just only gravitational potential energy, due to the gravitational field and the kinetic energy at this point is zero because the book is at rest.

Now, when the book starts falling, all the potential energy will transform into the kinetic energy. It happens, thanks to the conservation of the energy,that says energy can neither be created nor destroyed, energy can only be transferred or changed from one form to another.

Let's recall that the gravitational potential energy depends on the object's position, so when the book falls, the magnitude of the position decreases and the speed of this object increases.

Therefore, the potential energy of the book decreases as kinetic energy increases.

Correct answer letter b.

I hope it helps you!  

6 0
3 years ago
Read 2 more answers
What is a phone message?
malfutka [58]
A message telephone messagemessage  a communication usually brie that is written or spoken or signaled; "hesent a three-word <span>message"</span>
8 0
3 years ago
Read 2 more answers
Antifreeze is a "must have" in an Albertan winter because it helps keep your vehicle engine from freezing in cold temperatures.
Natasha_Volkova [10]

Products such as antifreeze are composed of organic compounds that are classified as <em>alcohols</em>. (a)

Maybe those other classes of chemicals also lower the freezing temperature of water, just like alcohol does.  I don't know.  But alcohol is what's used to make anti-freeze.  I'm guessing alcohol must be cheaper, less toxic, and less corrosive inside the engines' cooling systems than any of that other stuff is.

4 0
2 years ago
Other questions:
  • Three beads are placed along a thin rod. The first bead, of mass m1 = 28 g, is placed a distance d1 = 1.5 cm from the left end o
    5·1 answer
  • A satellite of mars, called phobos, has an orbital radius of 9.4 106 m and a period of 2.8 104 s. assuming the orbit is circular
    6·2 answers
  • a 2.80 kg mass is dropped from a height of 4.50 m. find its potential energy(PE) at the moment it is dropped. PLEASE HELP
    14·1 answer
  • The flywheel of a steam engine runs with a constant angular velocity of 150 rev/min. When steam is shut off, the friction of the
    9·1 answer
  • Please help asap!99 points
    14·2 answers
  • What problem can you imagine coming from using digitized<br> DNA storage?
    11·1 answer
  • When you mix two substances, the heat gained by one substance is equalto the heat lost by the other substance. Suppose you place
    14·1 answer
  • How are flow of electrons in a conductor and the direction of conventional current related??​
    7·1 answer
  • determine the longest wavelength of light required to remove an electron from a sample of potassium metal, if the binding energy
    9·1 answer
  • Which change to an object would reduce its kinetic energy by half
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!