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STatiana [176]
3 years ago
14

Select all that apply.

Physics
2 answers:
slega [8]3 years ago
7 0
A chemist is likely to:
<span>1. analyze the ingredients in ice cream
</span><span>2. determine how to separate gasoline from other substances in petroleum</span>
Shkiper50 [21]3 years ago
5 0

Answer: Analyze the ingredients in ice cream.

Determine how to separate gasoline from other substances in petroleum.

Explanation:

A chemist is a scientist who posses the knowledge of the discipline chemistry. The chemists studies the properties of the chemicals or any other matter present in nature. A chemist can perform testes to identify and quantify substances found miscible in the mixture.

Among the options given, the following are the correct options.

Analyze the ingredients in ice-cream.: The chemist can perform chemical tests to identify and quantify the ingredients present in the ice-cream.

Determine how to separate gasoline from other substances in petroleum.: The petroleum or crude oil can include other volatile substances such as gasoline therefor, suitable chemical extraction processes can be performed to separate such volatile substances.

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How does the amount of friction affect the sum of forces
iren [92.7K]

Answer:

<h3>Newton's 2nd law states acceleration is proportional to the net force acting on an object. The net force is the vector sum of all the forces applied to the object. ... In this case the acceleration (slowing down) of the puck is proportional to the amount of friction.</h3>

Explanation:

<h3>mark as brainliast</h3>

6 0
2 years ago
A car traveling at a speed of 30.0 m/s encounters an emergency and comes to a complete stop. how much time will it take for the
Vedmedyk [2.9K]

Answer:7.5seconds

Explanation:

V=0 u=30m/s a=-4m/s^2

t=(v-u)/a

t=(0-30)/-4=-30/-4

t=7.5second

8 0
3 years ago
Which of the following does not illustrate a complete circuit?
Yakvenalex [24]

Answer:

I think A

Explanation:

because it dosn't have enough tools

4 0
3 years ago
Which of the following best describes the human population from early times to the present?
Makovka662 [10]

Answer:

We have a not significant increase of the population until 1700s or 1800s and then a significant increase growth from these years to the present.

Explanation:

From the figure attached we see the evolution of the human population since early times (1050).

We see that from 1050 until 1750-1850 we have an increase slowly with a low value for the increase per year.

But after these years (1750-1850) we see a considerable increase of the population, like an exponential model.

So then we can conclude in general terms this:

We have a not significant increase of the population until 1700s or 1800s and then a significant increase growth from these years to the present.

7 0
3 years ago
A particle starts from the origin at t = 0 with an initial velocity of 4.8 m/s along the positive x axis.If the acceleration is
tia_tia [17]

Answer:

Part a)

Velocity = 6.9 m/s

Part b)

Position = (3.6 m, 5.175 m)

Explanation:

Initial position of the particle is ORIGIN

also it initial speed is along +X direction given as

v_x = 4.8 m/s

now the acceleration is given as

\vec a = -3.2 \hat i + 4.6 \hat j

when particle reaches to its maximum x coordinate then its velocity in x direction will become zero

so we will have

v_f = v_i + at

0 = 4.8 - 3.2 t

t = 1.5 s

Part a)

the velocity of the particle at this moment in Y direction is given as

v_f_y = v_i + at

v_f_y = 0 + 4.6(1.5)

v_f_y = 6.9 m/s

Part b)

X coordinate of the particle at this time

x = v_x t + \frac{1}{2}a_x t^2

x = 4.8(1.5) - \frac{1}{2}(3.2)(1.5^2)

x = 3.6 m

Y coordinate of the particle at this time

y = v_y t + \frac{1}{2}a_y t^2

y = 0(1.5) + \frac{1}{2}(4.6)(1.5^2)

y = +5.175 m

so position is given as (3.6 m, 5.175 m)

5 0
3 years ago
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