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
marin [14]
3 years ago
15

Which shows a decrease in fluid pressure? A. Water in a creek slows down as it enters a slow-moving river. B. Oxygen is compress

ed as it is put into a pressurized tank. C. A river speeds up when it moves into a narrower channel. D. A fan is turned on high speed to low speed.
Physics
2 answers:
Dahasolnce [82]3 years ago
7 0

Answer:

A

Explanation

Becasue the water level is decreasing

Ainat [17]3 years ago
3 0

Answer:

Option D.

A fan is turned from high speed to low speed.

Explanation:

It is important to note that air is also a fluid.

In a system, static pressure of air increases with the speed of rotation of the fan. This is because when the speed of the fan is increased, the force with which it is pushing the air molecules is increased. Since pressure is a relationship between force and area, the pressure of the air molecules will be increased.

Conversely, when the speed of the fan is reduced, the priming force on the air molecules will be reduced, hence the pressure of the air will drop.

This makes option D the correct option

You might be interested in
a coin press creates a pressure of 3.20*10^8 Pa on a nickel of radius 0.0106 m. how much force does the press exert on the coin?
Naya [18.7K]

Answer:

1.13 x 10⁵N

Explanation:

Given parameters:

Pressure of the coin press = 3.2 x 10⁸ Pa

radius of the nickel coin = 0.0106m

Unknown:

Force of the press on coil = ?

Solution:

Our knowledge of pressure will help us solve this problem.

Pressure is defined as the force applied per unit area on a body.

              Pressure  = \frac{force}{area}

  Force = Pressure  x  Area

 Since the pressure is known;

Area of the coin = Area of a circle = π r²

 where r is the radius of the coin;

Area of the coin = π x 0.0106²  = 3.53 x 10⁻⁴m²

  Force = 3.2 x 10⁸ x  3.53 x 10⁻⁴  = 1.13 x 10⁵N

3 0
3 years ago
A block of size 20m x 10 mx 5 m exerts a force of 30N. Calculate the
Orlov [11]

Answer:

We know that force applied per unit area is called pressure.

Pressure = Force/ Area

When force is constant than pressure is inversely proportional to area.

1- Calculating the area of three face:

A1 = 20m x 10 m =200 Square meter

A2 = 10 mx 5 m = 50 Square meter

A3 = 20m x 5 m = 100 Square meter

Therefore A1 is maximum and A2 is minimum.

2- Calculate pressure:

P = F/ A1 = 30 / 200 = 0.15 Nm⁻²  ( minimum pressure)

P = F / A2 = 30 / 50 = 0.6 Nm⁻²   ( maximum pressure)

Hence greater the area less will be the pressure and vice versa.

3 0
3 years ago
The sun warms equatorial regions of Earth ______ than the poles. This cause an area of ________ pressure to develop near the equ
Lera25 [3.4K]

Answer:

more

low

toward

Explanation:

6 0
3 years ago
What happens when red, blue, and green light come together?
Alja [10]

Answer:

I believe if red, blue, and green light come together it would produce White light.

8 0
2 years ago
Read 2 more answers
when white light is incident on prism, which one of the resulting color components will have the lowest index of refraction?
attashe74 [19]
The color components that will have the lowest index of refraction will be orange.
3 0
3 years ago
Read 2 more answers
Other questions:
  • If the maximum time between the emitted and received pulse is 1/ 10 second, what is the farthest distance you could measure with
    12·1 answer
  • A car is being towed at a constant velocity on a horizontal road using a horizontal chain. The tension in the chain must be equa
    15·1 answer
  • How many protons, neutrons, and electrons does a neutral atom of this element have? (round atomic mass to nearest whole number)
    6·2 answers
  • A calorimeter uses the temperature change of water to determine the _____ of another substance.
    10·1 answer
  • As a basketball ball player starts to jump for rebound
    13·1 answer
  • A distressed car is rolling backward, downhill at 3.0 m/s when its driver finally manages to
    14·1 answer
  • It’s bungee jumping skydiving and hiking
    14·1 answer
  • Select the correct answer
    11·2 answers
  • I WILLL MARK YOUUUUUUU HELPPPP
    6·2 answers
  • Brainlist nd 20 points
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!