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
OLga [1]
3 years ago
8

Which of the following is not an example of an engine?

Physics
1 answer:
SashulF [63]3 years ago
4 0
The answer is A. waterfall
To be considered as an engine , it should be a Man-made objects that could be used to produce power that creates motions.
From all the options above could be used to produce such power, but the waterfall is not made by mandkind
You might be interested in
I notice the wheels on my bicycle spin in a circular motion as I am pedaling. I know that the
kherson [118]

Answer:

Acceleration, a = 750m/s²

Explanation:

Given the following data;

Radius, r = 0.31m

Velocity, v = 15m/s

To find the centripetal acceleration;

Acceleration, a = \frac {v^{2}}{r}

Substituting into the equation, we have;

Acceleration, a = \frac {15^{2}}{0.31}

Acceleration, a = \frac {225}{0.31}

Acceleration, a = 750m/s²

Therefore, the centripetal acceleration of the bike wheel is 750m/s².

6 0
3 years ago
Select all that apply. Select the items that describe an economy at equilibrium.
ella [17]

The correct answers are:

B) Producers supply enough goods for consumers;

D) Supply equals demand;

In the economics, the equilibrium state basically means that the supply in the market is well balanced with the demand on the market, thus leading to an ideal economic state within the economy. The equilibrium will essentially mean that the supply is equal to the demand, thus there will be maximum efficiency. Also, since the producers are managing to supply just the right amount of goods to the consumers, everyone will benefit, with the consumers always have what they want, and the producers always have all of their products sold.

8 0
4 years ago
Plz help plllzzzzzzzz
Lostsunrise [7]
Im trying to answer but it won’t let me:(
4 0
3 years ago
A student pushes a 12 kg block on a frictionless horizontal surface if the block is initially at rest what is the speed of the b
Lina20 [59]

Answer:

20N

Explanation:

Given parameters:

Mass of the block  = 4kg

Acceleration  = 5m/s²

4 0
3 years ago
Cardio exercise keeps that all-important muscle—the ________—strong by forcing it to pump blood and oxygen more quickly througho
fomenos

Answer:

Heart

Explanation:

3 0
3 years ago
Other questions:
  • Plz help me with this ^^^
    7·2 answers
  • A car is travelling at constant velocity. Its brakes are then applied, causing uniform deceleration. Which graph shows the varia
    6·1 answer
  • What volume of lead must be fastened underneath it to sink the wood in calm water so that its top is just even with the water le
    13·1 answer
  • What is the magnitude of the current in the wire<br>help please
    14·1 answer
  • A 2.02 nF capacitor with an initial charge of 4.55 µC is discharged through a 1.22 kΩ resistor. (a) Calculate the current in the
    10·1 answer
  • What are 15 waterproof objects that are found around the house?
    5·2 answers
  • Which axis is the IV on a graph?
    12·1 answer
  • The blades of a ceiling fan starting from rest reach an angular velocity of 22 rad/s
    15·1 answer
  • To apply Problem-Solving Strategy 12.2 Sound intensity. You are trying to overhear a most interesting conversation, but from you
    15·1 answer
  • A 25 N force is used to push a box across a floor against a frictional force of 14 N. The box
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!