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Angelina_Jolie [31]
3 years ago
14

until a train is a safe distance from the station, it must travel at 5 m/s. Once the train is on open track , it can speed up to

45 m/s. If it takes a train 8 seconds to reach 45 m/s, what is the acceleration of the train?
Physics
1 answer:
kiruha [24]3 years ago
6 0

Answer:

5

Explanation:

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Action and reaction forces are described by which of Newton's laws of motion?
Ilia_Sergeevich [38]

Answer:

The first one

Explanation:

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Which statement best describes the difference between acceleration and velocity?
Sloan [31]
C. is the answer because acceleration is the change in velocity in time while velocity is speed with a direction
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If f3=0 and f1=12n, what does the magnitude of f⃗ 2 have to be for there to be rotational equilibrium?
QveST [7]

<span>I found out F2 and its correct just need help in solving the other parts </span>
<span>F2 = 4.5 N </span>
4 0
4 years ago
In the diagram, 91, 92, and q3 are in a straight line. Each of these particles has a charge of -2.35 x 10-6 C. Particles q₁ and
Strike441 [17]

The net force on particle q₃ is  6.2128125 N.

<h3>What is electrostatic force?</h3>

The electrostatic force F between two charged objects placed distance apart is directly proportional to the product of the magnitude of charges and inversely proportional to the square of the distance between them.

F = kq₁q₂/d²

where k = 9 x 10⁹ N.m²/C²

Given is the diagram in which each of the particles has a charge of -2.35 x 10⁻⁶ C. Particles q₁ and q₂ are separated by 0.100 m and particles q₂ and q₃ are separated by 0.100 m.

Force acting on q₃ due to q₁

F₃₁  = 9 x 10⁹ x (-2.35 x 10⁻⁶)²/(0.1)²

F₃₁ = 4.97025 N(in right direction)

Force acting on q₃ due to q₂

F₃₂ = 9 x 10⁹ x (-2.35 x 10⁻⁶)²/(0.1+0.1)²

F₃₂ = 1.2425 N (in right direction)

Net force acting on particle q₃ is

F₃ = F₃₁ +F₃₂

F₃ = 4.97025 N + 1.2425 N

F₃ = 6.2128125 N

Thus the net force on a charged particle is  6.2128125 N to the right.

Learn more about electrostatic force.

brainly.com/question/9774180

#SPJ1

3 0
2 years ago
Claire lost weight thanks to the support and encouragement of her friends. They helped her stick to a healthy diet and pushed he
atroni [7]

Answer:

hello the options to your question is missing below are the options

culture

heredity

physical environment

social environment

answer : social environment

Explanation:

Claire ability to lose weight due to the encouragement and support of her friends shows that she was ability to achieve her goal due to her social circle ( friends ). therefore the face time that helped her lose weight is her social environment and not culture nor any other option as mentioned above.

social environments help/play a vital role in individual's life a lot as long as every human being is a social being

6 0
3 years ago
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