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
kiruha [24]
2 years ago
13

why is the freezer compartment of a refrigerator kept at the top in terms of conduction convection and radiation​

Physics
1 answer:
Ulleksa [173]2 years ago
4 0

Answer:

The freezer compartment is at the top of a fridge because cool air sinks. (convection current)

Explanation:

You might be interested in
A string is tied between two posts separated by 2.4 m. When the string is driven by an oscillator at frequency 567 Hz, 5 points
Alex787 [66]

Explanation:

The given data is as follows.

       Length (l) = 2.4 m

       Frequency (f) = 567 Hz

Formula to calculate the speed of a transverse wave is as follows.

                  f = \frac{5}{2l} \times v

Putting the gicven values into the above formula as follows.

                  f = \frac{5}{2l} \times v

                 567 Hz = \frac{5}{2 \times 2.4 m} \times v

                      v = 544.32 m/s

Thus, we can conclude that the speed (in m/s) of a transverse wave on this string is 544.32 m/s.

5 0
3 years ago
Scientists use tables and graphs to chart and analyze _________.
MissTica

Explanation:

Tables and graphs are visual representations. They are used to organise information to show patterns and relationships. A graph shows this information by representing it as a shape. Researchers and scientists often use tables and graphs to report findings from their research.

6 0
3 years ago
Which materials are the best thermal insulators?
MrMuchimi
I think that the answe is gasses.
8 0
3 years ago
Read 2 more answers
A spherical weather balloon is filled with hydrogen until its radius is 4.40 m. Its total mass including the instruments it carr
ipn [44]

Answer:

4515.49484 N

4329.10484 N

Explanation:

r = Radius of balloon = 4.4 m

m = Mass of balloon with instruments = 19 kg

g = Acceleration due to gravity = 9.81 m/s²

Volume of balloon

v=\frac{4}{3}\pi r^3\\\Rightarrow v=\frac{4}{3}\pi 4.4^3\\\Rightarrow v=356.8179\ m^3

The Buoyant force = Weight of the air displaced

F=\rho vg\\\Rightarrow F=1.29\times 356.8179\times 9.81\\\Rightarrow F=4515.49484\ N

The buoyant force acting on the balloon is 4515.49484 N

Net force on the balloon

F_n=F-W\\\Rightarrow F_n=4515.49484-19\times 9.81\\\Rightarrow F_n=4329.10484\ N

The net force on the balloon is given by 4329.10484 N

As the balloon goes up the pressure outside reduces as the density of air decreases while the air pressure inside the balloon is high hence, the radius of the balloon tend to increase as it rises to higher altitude.

5 0
3 years ago
Horatio used the flat end of a hammer to remove a nail from a piece of wood. This is an example of using a hammer as a(n)
Roman55 [17]

lever is the correct answer...Leave me a heart

7 0
3 years ago
Read 2 more answers
Other questions:
  • The maximum energy a bone can absorb without breaking is surprisingly small. Experimental data show that both leg bones, togethe
    5·1 answer
  • A 115-turn circular coil of radius 2.71 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coi
    9·1 answer
  • Does Mike wosowski blink or wink
    10·2 answers
  • A sled of mass 8 kg slides along the ice. It has an initial speed of 4 m/s but
    7·1 answer
  • In addition to possibly releasing harmful chemicals in the environment, mining is considered
    5·1 answer
  • 11. You are in the frozen food section of the grocery store and you notice that your hand gets cold when you place it on the gla
    7·1 answer
  • A 69.5-kg person throws a 0.0475-kg snowball forward with a ground speed of 31.5 m/s. A second person, with a mass of 57.5 kg, c
    15·1 answer
  • Calculate their densties in Si unit.<br>200mg,0.0004m​
    11·1 answer
  • What is the rotational inertia of the bug-rod-spheres system about the horizontal axis through the center of the rod
    15·1 answer
  • Between 1992 and today, astronomers using large telescopes have discovered many icy pieces that orbit in the same region as the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!