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
iVinArrow [24]
3 years ago
11

Describe how the design of a vacuum flask keeps the liquid inside hot ?

Physics
2 answers:
slavikrds [6]3 years ago
4 0
The gap between the two flasks<span> is partially evacuated of air, creating a near-</span>vacuum<span> which significantly reduces heat transfer by conduction or convection. </span>Vacuum flasks<span> are used domestically to </span>keep<span> beverages</span>hot<span> or cold.</span>
JulijaS [17]3 years ago
3 0
The gap between the two flasks is partially evacuated of air creating a near vacuum which significantly reduces heat transfer by conduction or convection 
You might be interested in
Waves must exhibit a constant phase difference for interference to occur. Please select the best answer from the choices provide
zalisa [80]
True is what it is/ ,,,,,,,,,,,,,
8 0
3 years ago
Alice drops a rock to a well. She hears the splash of the rock 4.1s later. The speed of sound is 340m/s. How deep is the well
Maksim231197 [3]

Answer:

697 m

Explanation:

From the question above,

Note: Alice hears the splash of the rock in the well through the help of echo.

Applying,

v = 2x/t........................ Equation 1

Where v = speed of sound, x = depth of the well, t = time.

make x the subject of the formula in equation 1

x = vt/2................... Equation 2.

Given: v = 340 m/s, t = 4.1 s

Substitute these values into equation 2

x = 340(4.1)/2

x = 697 m.

3 0
3 years ago
If the moon disapared what affect would this have on earths tides
Free_Kalibri [48]
If the moon disapared what affect would this have on earths tides:
There would no longer be any tides.
The moon is what causes the push and the pull of waves.        
6 0
2 years ago
__________ is/are formed between two air masses that have different temperatures. (4 points) A: Wind B:The jet stream C:Clouds D
lidiya [134]
The answer is B: the jet stream.


8 0
3 years ago
Read 2 more answers
Calculate the broadcast wavelength of the radio station 99.90 fm. seconds
taurus [48]

The radio waves are electromagnetic wave, so it travels with velocity of light i.e 3\times 10^{8} \ m/s.

We can use the relation between frequency, wavelength and speed as

\lambda =\frac{c}{f}

Here c is speed of light, \lambda is wavelength and f is frequency and its value is given 99.90 FM, it is actually in megahertz  (i.e 99.90 MHz).

Therefore,

\lambda =\frac{3 \times 10^{8}\ m/s }{99.90 \times 10^{6} \ Hz} = 3.003 \ m.

Thus, the broadcast wavelength of the given radio station is 3.003 m.

8 0
3 years ago
Other questions:
  • The freezing point of water is the same as its
    15·2 answers
  • It's a hot sunny day and you decide to go for a drive. When you open your car door, it's a lot hotter inside than outside. Why i
    14·2 answers
  • A truck moves 70 m east, then moves 120 m west, andfinally
    7·1 answer
  • A child with mass 40 kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of rotation. The merry-go-roun
    9·1 answer
  • two soccer players are running for the same ball during a game. Without looking the two collide. One player has a mass of 45 kg
    5·1 answer
  • The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. This
    13·1 answer
  • An object of mass m is attached to a vertically oriented spring. The object is pulled a short distance below its equilibrium pos
    7·1 answer
  • g What is the separation between their paths in meters when they hit a target after traversing a semicircle
    14·1 answer
  • Write a hypothesis for Part I of the lab, which is about the
    8·1 answer
  • PLEASE HELP DUE TODAY!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!