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stepan [7]
3 years ago
11

D

Physics
2 answers:
bulgar [2K]3 years ago
6 0
The answer Is D!! Hope this helps
Ber [7]3 years ago
3 0

Answer:

D

Explanation:

I think you got it right

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The driver of a 1750 kg car traveling on a horizontal road at 110 km/h suddenly applies the brakes. Due to a slippery pavement,
Alexeev081 [22]

Answer: a=-2.4525 m/s^2

d=s=190.3 m

Explanation:The only force that is stopping the car and causing deceleration is the frictional force Fr

Fr = 25% of weight

W=mg

W=1750*9.81

W=17167.5

Hence

Fr=\frac{25}{100} * -17167.5\\\\Fr=-4291.875 N

Frictional force is negative as it acts in opposite direction

According to newton second law of motion

F=ma

hence

a=Fr/m

a=-4291.875/1750\\a=-2.4525

given

u= 110 km/h

u=110*1000/3600

u=30.55 m/s

to get t we know that final velocity v=0

v^2=u^2+2as\\0=30.55^2-2*2.4525*s\\s=190.34m

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2 years ago
Need help ASAP shoving brainlest plsssss
seraphim [82]
The answer for this would be B!!
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Explain the costruction and working of windmill
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A windmill produces wind without electricity. wind blows on a windmill and it and that’s how it produces wind. You can put a windmill in anywhere outdoors (ex. Deserts or plains)
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3 years ago
If an electron loses energy what may happen to it
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Where does energy come from that fuels our physical activity
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