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creativ13 [48]
3 years ago
10

A car accelerates from 10m/s to 20m/s over a distance of 80m. What is its acceleration?

Physics
1 answer:
Lina20 [59]3 years ago
5 0

Answer:

0.125m/s^2

Explanation:

20-10=10

10 divided by 80=0.125m/s^2

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Which environment is least likely to support protists
max2010maxim [7]

Answer:

A: Soil

Explanation:

Protists need a moist environment to survive, and shallow ponds, oceans, and blood is all moist. So, the answer would be the soil, because that is the least moist environment out of these options.

3 0
3 years ago
What is E equal to in relativity? ​
vladimir1956 [14]

\huge \underline \mathtt \colorbox{cyan}{E=mc squared}

(E=mc^2)

<h3><u>Where</u><u>:</u></h3>

<u>m</u><u> </u><u>is mass</u>

<u>And c is a constant for speed of light</u>

7 0
2 years ago
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a rock with a mass of 10.0 kg is balanced on top of a large boulder. describe the forces acting on the rock, and use the concept
denis-greek [22]

Explanation:

The forces acting on the rock include Normal Force, Gravitational force & Friction force

It's possible for it to stay on the boulder because the normal force balances it's weight. also because static friction acts on the boulder up to it's limiting friction even if it were on an attempt to move as a result of air resistance. gravitational forces act upon it by mainly affecting it it's weight. as altitude increases, it's weight decreases since gravity varies from a height to another.

7 0
2 years ago
If an object starting from rest falls 5.7 seconds how far does it fall
White raven [17]
Kinematic question!
Start with your knowns!

t = 5.7s \\ v0 = 0 \frac{m}{s}  \\ a =  - 9.8 \frac{m}{ {s}^{2} }
we want to find x!

the only kineamtic that works with this info is the third!
x = v0 \times t + \frac{1}{2}  \times a \times  {t}^{2}
so we plug in our values and get
x = 0 +  \frac{1}{2}  \times ( - 9.8 \frac{m}{ {s}^{2} } ) \times ( {(5.7s)}^{2} )
this'll equal out to -159.2 meters.

our units equal out, so we know our answer is correct!
5 0
3 years ago
How much would it cost to cover the entire land area of United States with dollar bills? To answer this question, you may find t
s2008m [1.1K]

Answer:

It would cost approximately $925,455,484 million to cover continental US and Alaska with $1 bills.

Explanation:

the area of a one dollar bill = 6.5 cm x 15.5 cm = 100.75 sq cm

the approximate area of continental US + Alaska = (1,000 miles x 3,000 miles) x 1.2 = 3,600,000 sq miles

each sq mile is roughly 2.58999 sq km, so the total area in sq km = 9,323,964 sq km

1 sq km = 1,000,000 sq meters

each sq meter = 10,000 sq cm

1 sq m = 10,000 / 100.75 = 99.25558 bills

1 sq km = 99,255,583.13 bills

9,323,964 sq km = 925,455,483,900,000 bills

8 0
3 years ago
Read 2 more answers
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