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
katovenus [111]
3 years ago
10

Please answer like this : 1 : 2 : 3 : 4 :

Physics
1 answer:
coldgirl [10]3 years ago
5 0
1: a system is a collection of two or more things/objects. but if you want to use a tennis ball for an example it would be considered an object but at an atomic level we could say it is a system. why? because, it is made up of millions of atoms and each and every atom could be considered an object
2: phone systems, ecological systems, space systems
3: the internal energy of the system can be understood by examining the simplest possible system. example: an ideal gas
4: electricity- by an electrical current.
You might be interested in
How does a wind turbine transform mechanical energy into electrical energy?
Alex777 [14]

Answer:

"A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion. As wind moves past the blades of a wind turbine, it moves or rotates the blades. These blades turn a generator."

4 0
3 years ago
Student pushes a 50 N block across the floor for a distance of 15 m how much work was done to move the block
Talja [164]

Answer:

750 J

Explanation:

We have a student that pushes a 50N block  across the floor for a distance of 15m. The question is asking how much work was done to move the block.

To solve this, we must know that we are looking for a certain thing called joules. And to get the answer, we must follow the formula of W = FS

F being the force and S being the distance.

W = FS

W = (50)(15)

W = 750

Therefore, 750 joules is our answer.

7 0
3 years ago
After release of jet, energy is lost by the engine. How principle of conservation of energy is obeyed in this condition.​
HACTEHA [7]

Answer:

The principle of conservation of energy states that in a closed system, the energy can neither be created nor destroyed between interacting particles and remains constant or transformed from one form to another

In the jet engine, the release of jet changes the number of interacting particles in the engine, and given that energy cannot be created in the instantaneously closed system of the engine, energy is carried away and therefore lost by particles in the jet exhaust

The conservation of energy principle is therefore obeyed in the condition in which the jet engine losses energy by the release of jet

Explanation:

5 0
3 years ago
What force is needed to give a 4.5-kg bowling ball an acceleration of 9 m/s2?
Sloan [31]
F=ma  
f=4.5*9                                           

40.5 N
hope this help
8 0
3 years ago
Read 2 more answers
Which explains whether boron or arsenic is the dopant most likely used in the semiconductor layer marked with +?
liubo4ka [24]

Answer:

D) This layer is the emitter of a PNP transistor, so it could include boron.

   Got it on quiz! Good luck!

   

Explanation:

4 0
3 years ago
Other questions:
  • A tube is open only at one end. A certain harmonic produced by the tube has a frequency of 571 Hz. The next higher harmonic has
    10·1 answer
  • How can you measure the distance an object has moved?
    11·1 answer
  • A body is moving vertically upwards. It’s velocity changes at a constant rate from 50m/s to 20m/s in 3 sec. What is it’s acceler
    9·2 answers
  • What is the wavelength in nm of a light whose first order bright band forms a
    8·1 answer
  • What’s a star? In complete sentences.
    8·1 answer
  • Enter a curve slower than the posted speed if your vehicle has a high center of gravity or if surface _____________ is less than
    9·1 answer
  • If a liquid is heated and the temperature at which it boils is measured, the _____ property is being measured.
    7·2 answers
  • What is your least favorite candy? Explain
    15·2 answers
  • Please select the word from the list that best fits the definition
    7·1 answer
  • A 20 kg box has an initial velocity of 2 m/s starting at the bottom of a 30-degree inclined plane. A person pushes on the box di
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!