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
WITCHER [35]
3 years ago
5

What is rarefraction

Physics
2 answers:
koban [17]3 years ago
8 0
<span>diminution in the density of something, especially air or a gas.</span>
andreev551 [17]3 years ago
6 0
<span>the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.</span>
You might be interested in
A gardener uses a water hose to fill a 30.0 L bucket. The gardener notes that it takes 1.00 min to fill the bucket. A nozzle wit
GalinKa [24]

Answer:

The distance can the water be projected is 4.51 m

Explanation:

The speed of the water in the hose is equal to:

v1 = R/A1

If we solve the continuity for v2:

v2 = R/A2 (eq. 1)

The equation for the vertical position is:

yf = yi + vy*t - (1/2)gt²

yi = 0

vy = 0

Clearing t:

t=\sqrt{\frac{-2y_{f} }{g} } (eq. 2)

The equation for position is:

xf = xi + vxt = 0 + v2t = v2t (eq. 3)

Replacing equation 1 and 2 in equation 3:

x_{f} =\frac{R}{A_{2}  } \sqrt{\frac{-2y_{f} }{g} } =\frac{30}{0.5} \sqrt{\frac{(-2)*(-1)}{9.8} }*\frac{1000}{60}  =451.75cm=4.51m

6 0
3 years ago
A form letter can be customized by using different fields in a __________.
Juli2301 [7.4K]
The answer is C. Email
8 0
3 years ago
Read 2 more answers
The angle that the Sun’s rays strike a region of Earth determines the amount of heat transferred.
Lunna [17]
This statement is true. The angle that the Sun's rays strike a region of Earth determines the amount of heat transferred. For example, as you seen on TV, a laser pointing at an object and that specific angle that the rays of the laser pointed at was being melted. Same goes for the relationship between the Sun's rays and the Earth because it has the same energy that is being emitted per second. 

3 0
4 years ago
Read 2 more answers
Birds sitting on a single power line don't get shocked. But if they were to place one foot on each of two lines, ___________ wou
Natalka [10]
Current would flow between them and they would receive a terrible shock.
5 0
3 years ago
Read 2 more answers
If a satellite moves with constant speed in a perfectly circular orbit around the earth, what is the direction of the accelerati
9966 [12]
Traveling at any point on a curve, the force and the acceleration are toward
the center of the circle that the curve is part of.  On a perfectly circular path,
the force and acceleration are always toward the center of the circle.
8 0
3 years ago
Other questions:
  • Which type of graph most clearly show how a part or percentage relate to the whole
    12·1 answer
  • Physical fitness involves the proper functioning of which body systems?
    6·2 answers
  • A brick in the shape of a cube with sides 10 cm has a density of 2500 kg/m^3. What is its weight? a.) 250 N
    15·1 answer
  • 10) A bicycle is traveling north at 5.0 m/s. The mass of the wheel, 2.0 kg, is uniformly distributed along the rim, which has a
    10·1 answer
  • What is transferred to an object when is done A:energy B:force C:effort D:resistance
    6·1 answer
  • Determine the maximum shearing stress in a solid shaft of 1.5-in. diameter as it transmits 75 hp at a speed of 1800 rpm. (Round
    12·1 answer
  • Mimas, a moon of Saturn, has an orbital radius of 1.62 × 108 m and an orbital period of about 23.21 h. Use Newton’s version of K
    6·1 answer
  • What is one advantage of using a computer over a graphing calculator?
    10·2 answers
  • The level of water in an olympic size swimming pool (50.0 meters long, 25.0 meters wide, and about 2.00 meters deep) needs to be
    7·1 answer
  • What is the force on a 1000 kg elevator that is free falling at 9.8 m/s/s?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!