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
vodomira [7]
3 years ago
14

Can someone explain the law of conservation of energy?

Physics
1 answer:
julsineya [31]3 years ago
5 0
The law of conservation of energy is a law that states that "energy cannot be created or destroyed, only changed" this means that you can't create it or destroyed as in, if you burn wood, you have released the energy. you haven't destroyed it, you have just released it
You might be interested in
A 75kg hockey player is skating across the ice at a speed of 6.0m/s. What is the magnitude of the average force required to stop
liq [111]

Answer:

692.31 N

Explanation:

Applying,

F = ma............... Equation 1

Where F = Average force required to stop the player, m = mass of the player, a = acceleration of the player

But,

a = (v-u)/t............ Equation 2

Where v = final velocity, u = initial velocity, t = time.

Substitute equation 2 into equation 1

F = m(v-u)/t............ Equation 3

From the question,

Given: m = 75 kg, u = 6.0 m/s, v = 0 m/s (to stop), t = 0.65 s

Substitute these values into equation 3

F = 75(0-6)/0.65

F = -692.31 N

Hence the average force required to stop the player is 692.31 N

6 0
2 years ago
Calculate the acceleration if you push with a 20-N horizontal force on a 2-kg block on a horizontal friction-free air table
Afina-wow [57]
Acceleration = force / mass = 20 / 2 = 10 m/s^2
3 0
3 years ago
You just explored work and heat. Now test your understanding,
Lyrx [107]

Answer:

the hotter it gets, the liquid(mercury), expands more and more, and will rise up the tube to the correct line to read the tempature

5 0
3 years ago
What is the volume of this bubble when it reaches the surface?
steposvetlana [31]

Answer:

Volume will be 15 mL. Solution:- If we look at the given information then it is Boyle's law as the temperature is constant and the volume changes inversely as the pressure changes. So, the volume of the air bubble at the surface will be 15 mL.

8 0
3 years ago
solve the following system by any method 2x - 6y = 24 ... -5x + 6y = -6 ... A. (0,-6) B. (4,-1) C. (-6,-6) D. (6,-1)
vodka [1.7K]
Using elimination, the answer is C. 
5 0
3 years ago
Other questions:
  • The power needed to operate your body is about 100 watts. suppose a human body (of typical mass) could run on fusion power and c
    14·1 answer
  • Which type of valve is commonly used on private water supply systems and the words open or shut appear in a window as the valve
    14·1 answer
  • To suck lemonade of density 1040 kg/m3 up a straw to a maximum height of 4.94 cm, what minimum gauge pressure (in atmospheres) m
    5·2 answers
  • I'm looking for the answers for 4-6 and how to do them. I have some answers already but I'm very unsure of them. Thank you!
    10·1 answer
  • A car of mass 1000kg is travelling in an eastward ( x) direction with a constant speed of 20m/s. It then hits a stationary truck
    8·1 answer
  • One of the foci for the moon's orbit would be the
    11·2 answers
  • Insight therapies involve verbal interactions between a therapist and a client that are used to promote positive changes in one'
    5·2 answers
  • Describe what is happening to the speed during the period (I). 0s - 10s __________________________________________________ (II).
    11·1 answer
  • If I was a scientist and I wanted to measure the intensity of an earthquake I would use
    13·1 answer
  • How are flow of electrons in a conductor and the direction of conventional current related??​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!