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WINSTONCH [101]
3 years ago
10

A car is travelling at 15 m/s on a horizontal road and stopped after 4 s. The coefficient of kinetic friction between the tires

and road is:​
Physics
1 answer:
givi [52]3 years ago
3 0

Answer:

Fr,= umg

umg= ma

a= v/t

umg= mv/t

u= v/gt= 0.38

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notka56 [123]
Two separate magnets.
7 0
3 years ago
PLS THIS IS DUE IN 2 MINUTES
Tom [10]

Answer:

The toy car. An object that isn't moving has no momentum

Explanation:

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Can somebody help me with this i cannot learn it online, a walk through would be nice :)
Goryan [66]

Answer:

1. 5 V

2. A₂ = 1.2 A

Explanation:

1. Determination of the voltage measured at R₃.

Voltage at R₁ (V₁) = 1 V

Voltage at R₂ (V₂) = 6 V

Total voltage (Vₜ) = 12 V

Voltage at R₃ (V₃) =.?

Vₜ = V₁ + V₂ + V₃

12 = 1 + 6 + V₃

12 = 7 + V₃

Collect like terms

12 – 7 = V₃

V₃ = 5 V

Thus, the voltage measured at R₃ is 5 V

2. Determination of A₂.

From the circuit diagram, we can see that the resistors are in series arrangement. This means that the same current will pass through each resistor.

Thus,

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6 0
3 years ago
Jupiter’s great red spot is believed to be a _____.
ale4655 [162]
<span>Jupiter’s great red spot is believed to be a like a hurricane storm. With all the years, it is still not determined why the Jupiter's great red spot is red in its color. The answer to the following missing blank is the hurricane storm.</span>
6 0
3 years ago
Read 2 more answers
On a hot summer day in the state of Washington while kayaking, I saw several swimmers jump from a railroad bridge into the Snoho
Svetlanka [38]

Answer: part a: 19.62m

part b: 19.62 m/s

part a: 2.83 secs

Explanation:If the air resistance is ignored then the swimmer experience free fall under gravity hence

u=0

a=9.81 m/s2

t=2 secs

s=ut+0.5at^2

s=h

h=0*2+0.5*9.81*2^2\\h=19.62 meters

Part b

v=u+at\\v=0+9.81*2\\v=19.62m/s

Part c

now we have h=2*19.62=39.24

39.24=0+0.5*9.81*t^2\\t^2=8\\t=2.83 secs

4 0
3 years ago
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