2 years ago

The graph represents velocity over time. What is the acceleration?

Physics

1 answer:

Semmy [17]2 years ago

7 0

Answer:

I think the answer is 0.2 m/s2

Explanation:

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Lucia wants to change the motion map shown so that it’s shows uniform circular motion. What change should Lucia make ?

Andrej [43]

Answer:

The last one - each vector pointing towards the center of the circle must be the same length for uniform circular motion

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2 years ago

Find the force. 10 points. Will give brainliest!

zepelin [54]

Answer:

8996kg*m/s/s

Explanation:

Given:

a=26m/s/s

m=346kg

Required:

f=?

Formula:

f=m*a

Solution:

f=346kg*26m/s/s

f=8996kg*m/s/s

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3 years ago

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How do electric and magnetic forces act on different objects

yuradex [85]

They either push or pull and make the object magnetic.

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3 years ago

The electric potential at a point in space is -890 V. If a 0.0285 C charge is placed there, what will its potential energy U be?

BabaBlast [244]

Answer: -25.4

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5 0

3 years ago

A thin oil slick (no=1.50) floats on water (nw=1.33). When a beam of white light strikes this film at normal incidence from air,

Sedbober [7]

Answer:

The (minimum) thickness of the oil slick is 325 nm.

Explanation:

Let the (minimum) thickness of the oil slick = $t_{o}$

Therefore:

2 $t_{o}$ = ( $m_{red}$ + $\frac{1}{2}$ )*λ $_{red}$ / $n_{o}$ (1)

similarly,

2 $t_{o}$ =( $m_{violet}+\frac{1}{2}$ )*λ $_{violet}$ / $n_{o}$ (2)

Thus, equation 1 = equation 2

( $m_{red}$ + $\frac{1}{2})$ *λ $_{red} /n_{o}$ = ( $m_{violet}+\frac{1}{2})$ *λ $_{violet}/n_{o}$

Where:

λ $_{red} = 650 nm$

λ $_{violet} = 390 nm$

$n_{o} = 1.5$

Therefore:

$\frac{2m_{violet}+1 }{2n_{red}+1 }$ =650/390=5/3

This shows that,

$m_{violet}$ =2

$m_{red}$ =1

Thus, using equation 2

$t_{o}$ = $\frac{5*390}{2*2*1.5} =325 nm$

6 0

3 years ago