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3 years ago

11

Instruments on board the trmm (tropical rainfall measuring mission) satellite show 3d images of very tall rain columns called __

___.

1 answer:

Ket [755]3 years ago

7 0

These columns are called hot towers

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When a wire within a closed circuit is coiled upon a nail, the nail will _______.

Natali5045456 [20]

when wire is coiled upon a nail then it will posses magnetic characteristics

This is due to the coiled shape it will behave like a solenoid and the magnetic field of solenoid is given as

$B = \mu_o ni$

so here when wire is coiled up on a nail then due to the magnetic field of the coil the nail will attain magnetic characteristic.

so correct answer will be

<em>Possess magnetic properties </em>

5 0

4 years ago

Read 2 more answers

If the frequency of a wave is 400hz and it’s wave length is2.5 what is the velocity ?

gizmo_the_mogwai [7]

To begin with, we can use the formula that links frequency, wavelength and velocity.

Because you already have the wavelength and the frequency, you just need to solve for velocity. You can do this by multiplying each side of the equation by frequency.

Therefore, 400 x 2.5 = 1000m/s.

Hope this helps :)

8 0

3 years ago

PLEASE HELP!!! PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

ehidna [41]

For the first one, the correct answer would be "<span>Substance changes its form but not its molecular composition.". During a physical change (let's say cutting paper), the substance has its shape changed, but it is still itself (paper).

</span><span>The second one is a bit trickier: </span>
Kinetic energy of a molecule is directly influenced by temperature. If there is a higher temperature it will have a higher kinetic energy which means the molecule moves at a higher velocity. This will increase the chance of particles bouncing off of each other during the chemical reaction. That explains why the rate of reaction will be higher at a higher temperature, rather than higher at a cool temperature. The correct answer would be lower at 39F.

4 0

3 years ago

Based on the type of medium, what can you assume about the speed of sound in glass?

adelina 88 [10]

Answer:

"It will be more than the speed of sound waves in air at 20*C and water at 20*C."

Explanation:

Speed of sound in a medium depends upon the density and elasticity of the medium.

If the elasticity of a medium is greater and the density of that medium is lower, sound will travel faster. Although density is also a factor but the major factor is Elasticity.

Hence, sound travel faster in solids than in liquids and even slower in gases due to elasticity difference.

$Speed of sound = V = \sqrt{\frac{Elasticity}{Density} }$

That is why the speed of sound in glass will be more than the speed of sound waves in air at 20*C and water at 20*C.

5 0

3 years ago

If you jump off a 10 m diving platform, how long will it take you to hit the water?

Vilka [71]

Answer:

<h2>t=1.43 s</h2>

Option A is the correct option.

Solution,

S=10 m

u=0 m/s

a=9.8 m/s^2

Now,

<h3> $2s = a {t}^{2} \\ or \: {t}^{2} = \frac{2 \times 10}{9.8} \\ or \: {t}^{2} = \frac{20}{9.8} \\ or \: {t}^{2} = 2.04 \\ or \: t = \sqrt{2.04} \\ t = 1.43 \: seconds$ </h3>

hope this helps...

Good luck on your assignment...

8 0

3 years ago