3 years ago

Which of the following are examples of acceleration?

Physics

2 answers:

ycow [4]3 years ago

8 0

Answer:

A, B, and D.

Explanation:

I've answered this exact question on a quiz. Hope it's not too late!

attashe74 [19]3 years ago

3 0

Answer:

cough

Explanation:

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With detailed explaniation

belka [17]

Ø=37°
Initial velocity=u=20m/s
g=10m/s²

$\\ \rm\Rrightarrow H_{max}=\dfrac{u^2sin^2\theta}{2g}$

$\\ \rm\Rrightarrow H_{max}=\dfrac{20^2(sin37)^2}{2(10)}$

$\\ \rm\Rrightarrow H_{max}=\dfrac{400sin^237}{20}$

$\\ \rm\Rrightarrow H_{max}=20sin^237$

$\\ \rm\Rrightarrow H_{max}=7.2m$

$\\ \rm\Rrightarrow R=\dfrac{u^2sin2\theta}{g}$

$\\ \rm\Rrightarrow R=\dfrac{20^2sin74}{10}$

$\\ \rm\Rrightarrow R=40sin74$

$\\ \rm\Rrightarrow R=38.5m$

$\\ \rm\Rrightarrow T=\dfrac{2usin\theta}{g}$

$\\ \rm\Rrightarrow T=\dfrac{2(20)sin37}{10}$

$\\ \rm\Rrightarrow T=4sin37$

$\\ \rm\Rrightarrow T=2.4s$

Now

$\\ \rm\Rrightarrow v=u-gt$

$\\ \rm\Rrightarrow v=20-10(2.4)$

$\\ \rm\Rrightarrow v=20-24$

$\\ \rm\Rrightarrow v=-4m/s$

4 0

2 years ago

Does Solid surfaces reflect better than liquid surfaces? If why?

zloy xaker [14]

It depends on what type of solid

7 0

3 years ago

The heliocentric theory suggests blank

astra-53 [7]

Answer:

Heliocentrism is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Universe.

Explanation:

4 0

3 years ago

PLEASE HELP.. ILL GIVE U BRAINLY Do you think that air is made of particles? What evidence do you have to support your claim?

3241004551 [841]

Answer:

yes

Explanation:

I think that air is made of particales because air is made out of gas but it has some particales in the air called aerosols.

7 0

3 years ago

Find the expression for the displacement covered in nth or in last one second

Natali [406]

Answer:

Snth = u + a/2 ( 2n - 1)

Explanation:

Do you need explanation based on graph, integration or other method?

3 0

3 years ago