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Mashcka [7]
3 years ago
13

What must the driver do when approaching an intersection and seeing the traffic light turn from green to yellow?

Physics
1 answer:
NISA [10]3 years ago
4 0
The person should start to slow down but if close enough or in the intersection go threw. Otherwise come to a complete stop until the light turns green again
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A(n) 30 kg boy rides a roller coaster. The acceleration of gravity is 9.8 m/s 2 . With what force does he press against the seat
forsale [732]

Answer:

Force, F = 187.42 N

Explanation:

It is given that,

Mass of boy, m = 30 kg

Acceleration due to gravity, a=9.8\ m/s^2

Radius of curvature of the roller coaster, r = 15 m

Speed of the car, v = 7.3 m/s

The force acting on the boy are force of gravity and the centripetal force. The net force acting on him is as follows :

F=mg-\dfrac{mv^2}{r}

F=m(g-\dfrac{v^2}{r})

F=30\times (9.8-\dfrac{(7.3)^2}{15})

F = 187.42 N

So, he press against the seat with a force is 187.42 N. Hence, this is the required solution.

5 0
3 years ago
The suspension system mounts the car's wheels<br> solid on the frame. True or false?
nadezda [96]
Suspect and mounts are a solid frame. True.
3 0
3 years ago
What does an atomic number represent in an atom?
Bezzdna [24]

The number of protons in an atom is known as the atomic number

6 0
2 years ago
Read 2 more answers
In the Rolling Plains ecoregion of Texas, some parts of rivers are in deep canyons and others have bottoms that are close to the
Serga [27]

Answer:

most likely C

Explanation:

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3 years ago
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How does weathering alter the surface of land? Is it D?
Hoochie [10]

I don't think the shaping of the beach or hill would be considered
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'C' is really talking about weathering, where rocks are broken up into
stones, and the stones into smaller pieces that can be blown away
on the wind. THAT's weathering.

 
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2 years ago
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