All categories

3 years ago

Can someone please tell me what this instrument is and how it works please? thanks! (◡‿◡ʃ♡ƪ)

Physics

2 answers:

Mrrafil [7]3 years ago

6 0

Answer:

refracting telescope.

Explanation:

it works by refracting light and showing the object through the lens.

hope this helps! <3

~mina

Lerok [7]3 years ago

3 0

Answer

Refracting telescope

Explanation:

You might be interested in

Which is more dense, cold freshwater or warm seawater?

svp [43]

Cold freshwater is denser than warm seawater, because of the salinity and temperature variations. Cold water would have less salt since the solubility of the salt is lower as compared to warm water. Hope this answers the question. Have a nice day.

4 0

4 years ago

Read 2 more answers

Where does bacteria come from

brilliants [131]

Answer:

Fugis

Explanation:

dsd

4 0

3 years ago

Read 2 more answers

The total momentum of two marbles before a collision is 0.06 kg-m / s. no outside forces act on the marbles. what is the total m

SpyIntel [72]

Hi my friend, since momentum is always conserved without external forces, the momentum after the collosion will still be 0.06 kg*m/s. Hope it helps☺

4 0

3 years ago

The freezer compartment in a conventional refrigerator can be modeled as a rectangular cavity 0.3 m high and 0.25 m wide with a

Mkey [24]

Answer:

Thickness of Styrofoam insulation is 0.02741 m.

Explanation:

Given that,

Height = 0.25 m

Depth = 0.5 m

Power = 400 W

Temperature = 33°C

We need to calculate the area of Styrofoam

Using formula of area

$A=2(lb+bh+hl)$

Put the value into the formula

$A=2(0.3\times0.5+0.25\times0.5+0.5\times0.3)$

$A=0.85\ m^2$

Inner surface temperature of freezer

$T_{i}=-10°C=263\ K$

Outer surface temperature of freezer

$T_{o}=33+273=306\ K$

We need to calculate the thickness of Styrofoam insulation

Using Fourier law,

$q=\dfrac{kA}{L}(T_{o}-T_{i})$

$L=\dfrac{kA}{q}(T_{o}-T_{i})$

Put the value into the formula

$L=\dfrac{0.30\times0.85}{400}(306-263)$

$L=0.02741\ m$

Hence, Thickness of Styrofoam insulation is 0.02741 m.

3 0

3 years ago

High-level clouds usually occur above 20,000 ft. Which is the best description of the clouds’ appearance?

PSYCHO15rus [73]

D. Thin and composed of Ice crystals

8 0

4 years ago