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
vova2212 [387]
2 years ago
8

Prove and state law of conservation of energy​

Physics
1 answer:
Novay_Z [31]2 years ago
5 0

Explanation:

<em>Law of conservation of energy states that the energy of a system is always constant. </em>

In other words, we can say that energy can neither be created nor destroyed.

Mechanical energy (E) is the sum of the potential energy (U) and the kinetic energy (K) of the freely falling body. Therefore, <em><u>E=K+U=constant.</u></em>

You might be interested in
Who was the creator of sports
Elden [556K]
The first Olympic Games were in Greece
8 0
3 years ago
A train travels 90 kilometers in 2 hours, and then 66 kilometers in 2 hours. What is its average speed?
Inessa05 [86]
90+66=156
156/2=78

Reply:78kilometers in 2 hours.
3 0
3 years ago
Please send me solution of the question pls​
ELEN [110]

Answer:

20m

Explanation:

P.E=mgh

2000=10×10×h

2000=100h

Divide both side by 100

2000/100=20

4 0
2 years ago
How does the Doppler effect cause a siren's pitch to increase as it
Likurg_2 [28]

Answer:

Sound waves are pushed closer together, decreasing wavelength

and increasing frequency.

5 0
3 years ago
Which of the following properties of light can only be explained by wave theory and not by the Photoelectric effect? reflection
REY [17]
<span>Interference can only be explained if light is a wave. Youngs Double Slit experiment proved this, proving the wave nature of light.</span>
7 0
3 years ago
Other questions:
  • Many kayaks are made of plastic and other composite materials that are denser than water. How are such kayaks able to float in w
    8·1 answer
  • What two organelles should be labeled that WOULD NOT be found in an animal cell?
    7·1 answer
  • When an object is solely under the influence of conservative forces, the sum of its kinetic and potential energies does not chan
    8·1 answer
  • The placebo effect best illustrates the impact of______on relief from pain.
    14·2 answers
  • What is the SI unit for momentum?<br> kg•m<br> kg•m/s<br> kg•m²/s<br> Kg•m/s^2
    5·1 answer
  • After the cart bounces, how far does it roll back up the ramp?
    12·1 answer
  • Which process is a form of mechanical weathering?
    10·1 answer
  • Jillian can't bear to leave her home without washing all the linens and floors, vacuuming the carpets, and organizing everything
    15·1 answer
  • What is the relation between centre of gravity and stability
    10·1 answer
  • A bolt of lightning discharges 9.7 C in 8.9 x 10^-5 s. What is the average current during the discharge?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!