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
gogolik [260]
3 years ago
10

The thermal energy in a heat engine is used to move a piston. Which best describes why this is possible?

Physics
2 answers:
vichka [17]3 years ago
7 0

Answer:

the answer is a

Explanation:

just took the test

fiasKO [112]3 years ago
3 0
Hot air always goes for the top of air and its making pressure on piston which makes piston move up.
You might be interested in
an astronaut on an eva has wandered dangerously far away from the shuttle. she has also exhausted all the fuel in her jet pack.
V125BC [204]

The conservation of the momentum allows to find the result of how the astronaut can return to the spacecraft is:

  • Throwing the thruster away from the ship.

The momentum is defined as the product of the mass and the velocity of the body, for isolated systems the momentum  is conserved. If we define the system as consisting of the astronaut and the evo propellant, this system is isolated and the internal forces become zero. Let's find the moment in two moments.

Initial instant. Astronaut and thrust together.

        p₀ = 0

Final moment. The astronaut now the thruster in the opposite direction of the ship.

       m_f = m v + M v '

where m is propellant mass and M the astronaut mass.

As the moment is preserved.

       0 = m v + M v ’

      v ’= - \frac{m}{M} \ v  

We can see that the astronaut's speed is in the opposite direction to the propeller, that is, in the direction of the ship.

The magnitude of the velocity is given by the relationship between the masses.

In conclusion, using the conservation of the momentun we can find the result of how the astronaut can return to the ship is:

  • Throwing the thruster away from the ship.

Learn more here:  brainly.com/question/14798485

5 0
2 years ago
Which is true of a mechanical wave?
mario62 [17]
A mechanical wave must have a medium.

Hope this helps,
♥<em>A.W.E.<u>S.W.A.N.</u></em>♥
6 0
3 years ago
Read 2 more answers
Help.me on question 3 pls as fast as you can
antoniya [11.8K]

Answer:

Drought

Explanation:

If you are asking about Number 2. then the answer would be lack of precipitation (rain).

Climate change didn't allow for cold air to meet the warm air to produce precipitation over the run off area of the lake.

7 0
3 years ago
A horse has an acceleration of 2 m/s2. If it starts from rest, how fast is it going after 1.7 seconds?
fgiga [73]

       (2  m/s²)  ·  (1.7  s)  =  3.4 m/s
6 0
3 years ago
Read 2 more answers
If the frequency of q of a trait is 0.4, what is the frequency of p?
lianna [129]
In genetic traits, p and q represent the relative probabilities of the two alleles manifesting. If these two are the only options (ex. a dominant one and a recessive one), then the probabilities of both must sum up to 1. In this case, since we are given that q = 0.4, then p + q = 1, p + 0.4 = 1, and p = 0.6.
4 0
3 years ago
Read 2 more answers
Other questions:
  • HELP ASAP
    9·2 answers
  • Ugygyguygugugyub bbhjhghjgyg (bhjbgj yu
    9·1 answer
  • Which segment shows the substance changing from a gas to a liquid
    6·2 answers
  • A diagram show how a converging lens can produce a real image and virtual image​
    11·1 answer
  • Copper has a specific heat of 0.386 J/g°C. How much heat is required to increase 5.00 g of copper from 0.0°C to 10.0°C?
    10·1 answer
  • Which vocabulary term is survival of the fittest
    7·1 answer
  • What is the definition of velocity? (AKS 1/DOK1)
    10·2 answers
  • A particle (mass = 4.0 g, charge = 80 mC) moves in a region of space where the electric field is uniform and is given by Ex = -2
    11·1 answer
  • Help me I don't know what I'm doing ​
    8·2 answers
  • A mimibus drives with a constant speed of 39 km/h. how far can it travel in 1.94 hours?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!