2 years ago

NEES HELP!!!!

Physics

1 answer:

OLga [1]2 years ago

6 0

Answer:

Doppler Theory

Explanation:

it's a theory regarding the change in wave frequency during the relative motion between a wave source and its observer.

You might be interested in

PLEASE HELP! FOR BRAINLIEST!!!

Stells [14]

Answer:

I think it's C I'm so sorry if I'm wrong.

Explanation:

7 0

3 years ago

Read 2 more answers

A ball is projected horizontally from the top of a bertical building 25.0m above the ground level with an initial velocity of 8.

kirill115 [55]

Answer:

Solution given:

height [H]=25m

initial velocity [u]=8.25m/s

g=9.8m/s

now;

a. How long is the ball in flight before striking the ground?

Time of flight =?

Now

Time of flight= $\sqrt{\frac{2H}{g}}$

substituting value

= $\sqrt{\frac{2*25}{9.8}}$
=2.26seconds

<h3>the ball is in flight before striking the ground for 2.26seconds.</h3>

b. How far from the building does the ball strike the ground?

Horizontal range=?

we have

Horizontal range=u* $\sqrt{\frac{2H}{g}}$

=8.25*2.26
=18.63m

<h3>The ball strikes 18.63m far from building. </h3>

7 0

3 years ago

Why does a partially inflated weather balloon expand as it rises?

marusya05 [52]

Air pressure pushing in on the balloon decreases as the balloon rises.

3 0

3 years ago

Read 2 more answers

A balloonist drops his camera from a height of 100 m while his balloon is ascending at 5 m/s. How

ExtremeBDS [4]

20 i think is the answer

6 0

3 years ago

2. Sara y Antonio son mellizos. Cuando nacieron, Sara pesaba 600 gramos más que Antonio. Sus pesos ya se han igualado, gracias a

valkas [14]

Answer:

8,25 creo

Explanation:

nose no estoy segura

7 0

3 years ago