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Elina [12.6K]
3 years ago
7

17.

Physics
1 answer:
DaniilM [7]3 years ago
6 0

Answer:

t = 7 seconds

Explanation:

Given that,

The acceleration of a car, a = 4 m/s²

The initial velocity of the car, u = 0

Final velocity of the car, v = 28 m/s

We need to find how much time the car to reach a speed of 28 m/s. Using the definition of the acceleration of a car. It is given by :

a=\dfrac{v-u}{t}\\\\t=\dfrac{v-u}{a}\\\\t=\dfrac{28}{4}\\\\t=7\ s

So, it will take 7 seconds to reach a speed of 28 m/s.

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As a laudably skeptical physics student, you want to test Coulomb's law. For this purpose, you set up a measurement in which a p
monitta

Answer:

force F = 1.66 × 10^{-13} N

Explanation:

given data

proton and an electron = 865 nm

solution

we get here force that is express as

force F = k q1 q2 ÷ r²      ......................1

put here value and we get

force F = 9 × 10^{9} × \frac{1.6\times (10^{-19})^{2}}{865 \times (10^{-9})^{2}}    

force F = 1.66 × 10^{-13} N

4 0
3 years ago
What is an analogy that describes the process of electron carriers?
Vladimir79 [104]
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4 0
2 years ago
Read 2 more answers
Water flows through a garden hose which is attached to a nozzle. The water flows through hose with a speed of 1.81 m/s and throu
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Answer:

a) 17.086m

b) 0.1671 m

Explanation:

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through the nozzle = 18.3 m/s

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a) H = v^2/2g

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b) Again,  

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6 0
2 years ago
A 1502.7 kg car is traveling at 33.1 m/s when
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If you just want the magnitude, drop the negative sign.

5 0
3 years ago
a ball moves at a constant speed of 1/2 meter per second. How much time does it take the ball to move 1 meter?
lesya [120]

Answer:

2 seconds

Explanation:

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4 0
3 years ago
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