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salantis [7]
2 years ago
14

Engineers are starting on a new project to develop technology. Which of these

Physics
1 answer:
Ilya [14]2 years ago
3 0
The answer should be C. In this question
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An object at rest starts accelerating.
Shalnov [3]

Answer:

<u>We are given: </u>

initial velocity (u) = 0 m/s

final velocity (v) = 10 m/s

displacement (s) = 20 m

acceleration (a) = a m/s/s

<u>Solving for 'a'</u>

From the third equation of motion:

v² - u² = 2as

replacing the variables

(10)² - (0)² = 2(a)(20)

100 = 40a

a = 100 / 40

a = 2.5 m/s²

6 0
3 years ago
....................................................
iragen [17]
....................................
8 0
2 years ago
Read 2 more answers
Calcular la rapidez promedio
Vlada [557]

Answer:

  v_average = 15 m / s

Explanation:

The average speed can be found in two ways,

* taking the distance traveled and divide it by the time spent

* taking the velocities in each time interval and then finding the weighted average by the time fraction

              v_average = 1 / t_total ∑  v_{i}  t_{i}vi ti

Let's apply this last equation

               

Total time is

               t = t₁ + t₂

               t = 10 + 10 = 20   min

              v_average = 10/20 10 + 10/20 20

              v_average = 10/2 + 20/2

              v_average = 15 m / s

7 0
3 years ago
Atoms of the same element can have different properties.<br><br> A) True<br><br> B) False
vladimir2022 [97]

Answer:

False.

Explanation:

All atoms of the same element have the same number of protons, but some may have different numbers of neutrons.

6 0
3 years ago
In the illustration, the block on the table is at rest. Then, unbalanced forces act on the block. What is the result?
Ipatiy [6.2K]
D. The block moves to the right. There is more force blowing to the right, so the block will move to the right.

Hope this helps

Happy Holidays.

6 0
3 years ago
Read 2 more answers
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