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omeli [17]
2 years ago
12

Gold is used to make a super thin layer on the visors of astronauts' helmets because of which property in particular?

Physics
2 answers:
Radda [10]2 years ago
8 0

C gold is the best material for reflecting heat which is needed in space.

8090 [49]2 years ago
7 0

B, because gold is the most malleable substance of all.

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An object is accelerating from rest at a rate of 3 m/s2.How long will it take the object to attain 18 m/s ? *
Temka [501]
Initial velocity =0, a=3m/s2, final velocity =18m/s, 18=3t, t=6 sec
7 0
2 years ago
Peter does 3,000 joules (J) of work by moving an object 40 meters (m). What is the force that Peter applies to the object? A 75
Papessa [141]

The force that peter applies to the object of distance 40m is 75N.

<h3>HOW TO CALCULATE FORCE</h3>

The force applied to an object can be calculated by dividing the work done on the object by the distance moved. That is;

Force = Work done ÷ distance

According to this question, the work done is 3000 joules while the distance moved is 40m. The force is calculated as follows:

Force = 3000J ÷ 40m

Force = 75N

Therefore, the force that peter applies to the object of distance 40m is 75N.

Learn more about force at: brainly.com/question/26115859

4 0
2 years ago
Church organs have a set of pipes with different lengths. With those different pipes organs can produce sounds over a wide range
Paraphin [41]

Answer: The shortest possible wavelength of sound the organ can produce is 0.224 m

Explanation:

To calculate the wavelength of light, we use the equation:

\lambda=\frac{c}{\nu}

where,

\lambda = wavelength of the light

c = speed of light = 331m/s

As wavelength and frequency follows inverse relation, shortest wavelength is produced by highest frequency.

\nu = highest frequency of light = 1.48kHz=1.48\times 10^3Hz=1.48\times 10^3s^{-1}       1Hz=1s^{-1}

\lambda=\frac{331m/s}{1.48\times 10^3s^{-1}}=0.224m

Thus the shortest possible wavelength of sound the organ can produce is 0.224 m

8 0
3 years ago
Matching:
kompoz [17]

Answer:

The west wind drift circles the globe,near Antarctica I impeded it is the only ocean current that is a...

<u>B. Cold water current:</u>

The West Wind Drift also called Antarctic Circumpolar Current is the current which circles the entire globe and largest of all kind.

The West Wind Drift / Antarctic circumpolar current carries more water as compare to other currents in the world joining three ocean basin namely: Atlantic, Pacific and Indian. The West Wind Drift current's water is cold and thick because it is near to Antarctica due to which the water around it is freezing and having no salt in it. Due to its enclosure to Antarctica it pushes away hot water which helps it in keeping its large Ice sheet intact.  

7 0
3 years ago
. 1. When work is done and a force is transferred which choice describes the movement of the object? (Points : 3). . a) When wor
MissTica
I think that when work is done and a force istransferred an object must move in the direction of the force.
6 0
3 years ago
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