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Fed [463]
2 years ago
13

HELP ME PLEASEEEEEEEEEEEEEE

Physics
2 answers:
cestrela7 [59]2 years ago
6 0

Answer:

u r right

Explanation:

it is A. DNA

i took that class.

:)

Sauron [17]2 years ago
5 0

Answer:

I think it may be a brain?

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Why are water storage tanks usually placed on high towers
sammy [17]
Thay are on high towers because if it was below how would the water flow. Putting it on high towers gives you an advantage of the gravity with means you got free pressure without having to use a pump.

<span>Water pressure = Height * density * gravity</span>
7 0
3 years ago
Read 2 more answers
4. Identify Problems A student is describing a longitudinal wave in his notebook. He
andrew11 [14]

Answer:

 "The distance between crests is 3 cm." 

Explanation:

If he writes down "The distance between crests is 3 cm." 

That means he is describing the wavelength of a wave and not longitudinal wave. He ought to write something about " direction "

Longitudinal waves are waves in which the displacement of the medium is in the same direction as, or parallel to, the direction of propagation of the wave. While

Wavelength is the distance between the two successfully Crest or trough

3 0
3 years ago
Two ball bearings of mass m each moving in opposite directins with equal speed v collide head on with each other.predict the out
posledela

Yo sup??

since the collision is elastic therefore we can say that the two balls will then move in opposite direction.

If ball 1 was moving from east to west then after collision it will move from west to east

and if ball 2 was moving from west to east then it will start moving from east to west.

Hope this helps.

7 0
3 years ago
A truck is moving with a certain uniform velocity. It is accelerated uniformly by 0.75 m/s^2. After 20 seconds , the velocity be
scoundrel [369]

Answer:

Vi = 5 m/s

Explanation:

let (a) acceleration = 0.75 m/s²

(t) time = 20 seconds

Vf = final velocity = 72 km/hr  (convert to m/s to units consistency = 20 m/s)

find Initial velocity (Vi)

       Vf - Vi

a =  -----------

             t

Vi = Vf - (a * t)  = 20 - (0.75 * 20)

Vi = 5 m/s

5 0
3 years ago
What is the average acceleration during the time interval 0 seconds to 10 seconds?
Hunter-Best [27]

Answer:

yea its D  .

Explanation:

3 0
3 years ago
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