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
malfutka [58]
3 years ago
9

PLS HELP BEING TIMED!!!

Physics
2 answers:
Elodia [21]3 years ago
7 0

Answer:

K_{i}+U_{g,i} = K_{f}+U_{g,f}

Explanation:

A closed system is a system where exists energy interactions with surroundings, but not mass interactions. If we neglect any energy interactions from boundary work, heat, electricity, magnetism and nuclear phenomena and assume that process occurs at steady state and all effects from non-conservative forces can be neglected, then the equation of energy conservation is reduce to this form:

\Delta K +\Delta U_{g} = 0 (1)

Where:

\Delta K - Change in kinetic energy of the system, measured in joules.

\Delta U_{g} - Change in gravitational potential energy of the system, measured in joules.

If we know that \Delta K=K_{i}-K_{f} and \Delta U_{g} = U_{g,i}-U_{g,f}, then we get the following equation:

K_{i}+U_{g,i} = K_{f}+U_{g,f} (2)

Where i and f stands for initial and final states of each energy component.

Hence, the right answer is K_{i}+U_{g,i} = K_{f}+U_{g,f}

Rzqust [24]3 years ago
3 0

Answer:

KEi + PEi = KEf + PEf

Explanation

right on edge 2020

You might be interested in
A student pushes on a 5 kg box with a force of 20 N forward. The force of sliding friction
mart [117]

Answer:

Explanation:

F=20N

mu=-10N

F=ma

20-10=10

10=(5)(a)

a=2 m/s^2

4 0
3 years ago
Fill in the blank
ohaa [14]
That's the accuracy of the measurement.
6 0
3 years ago
Read 2 more answers
What part of the body acts as levelers
rosijanka [135]

Answer: your feet are the foundation! Even though all your body parts are connected and affect one another, your feet are what we at Foot Levelers call, the "foundation".

Explanation:

3 0
3 years ago
Which factor affects elastic potential energy but not gravitational potential energy?
Vika [28.1K]

Answer:

The correct answer is the spring constant (k)

Explanation:

  • Elastic potential energy:  Epe = ½ * k * Δx²

k = spring constant

Δx = displacement

  • Gravitational ptential energy: Ep = m*g*h

g = (acceleration due to gravity)

m = mass

h =  relative height of an object to some reference point

3 0
3 years ago
Read 2 more answers
You drive a car from Milwaukee to Chicago in 95 min. What is its velocity in km/hr and m/s?Use 150km as your distance.
adell [148]
You are going 94.737 km/h or 26.316 m/s
speed = distance/time

look up a speed calculator if you have more problems like this, it’ll save you time :)
5 0
2 years ago
Other questions:
  • A downhill skier was able to move 560 meters in 25 seconds. What is the skier’s average speed? (Round your answer to the nearest
    7·2 answers
  • To understand the first law of thermodynamics and its origin. By relating heat, thermal energy, and work, the first law lays the
    14·1 answer
  • How can spectroscopy and infrared technology be useful in space?
    11·1 answer
  • - Thermal Energy Test
    11·1 answer
  • Carl works hard to get a grades on his report card because his mother pays him 25 dollars for each semester he earns straight as
    10·1 answer
  • Which two statements explain reasons to use a computer program to encode
    5·2 answers
  • when a man throws a stone in the direction of maximum range the stone rises to a height of 20m . what is the range and how long
    11·1 answer
  • What is the volume of this bubble when it reaches the surface?
    13·1 answer
  • And I need help with seven and eight only I will appreciate it
    8·1 answer
  • I need the answer please help
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!