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erma4kov [3.2K]
3 years ago
11

A driver must always stop within 50 ft but not less than ____________ ft from the nearest rail when the signal is flashing and t

he crossing gates are lowered.
Physics
2 answers:
k0ka [10]3 years ago
5 0

Answer:

20 ft

Explanation:

docker41 [41]3 years ago
4 0

Answer:

15ft

Explanation:

As stated by the motor laws a driver must stop within 50ft and not less than 15ft from the railroad.

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Answer:

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2 years ago
A train travels 77 kilometers in 1 hour, and the 66 kilometers in 1 hour. What is the average speed?
Kipish [7]

Average speed = (total distance covered) / (time to cover the distance)

Total distance = (77km + 66km) = 143 kilometers

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6 0
3 years ago
A baseball with a mass of 151 g is thrown horizontally with a speed of 39.5 m/s (88 mi/h) at a bat. The ball is in contact with
Oduvanchick [21]

Answer:

the average force exerted on the ball by the bat is 11,613.27 N

Explanation:

Given;

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final velocity of the baseball, v = 45.1 m/s

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F = ma = \frac{m(v-u)}{t} \\\\F = \frac{0.151(45.1-(-39.5))}{1.10\times 10^{-3}} \\\\F = \frac{0.151(45.1\ +\ 39.5)}{1.10\times 10^{-3}} \\\\F = 11,613.27 \ N

Therefore, the average force exerted on the ball by the bat is 11,613.27 N

7 0
2 years ago
How are musical instruments grouped?
rosijanka [135]

A and B are equivalent.  That's one way instruments are often grouped. (the "sopranos", the "altos", the "bass")

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D is another way instruments are often grouped; (the "strings", the "percussions")

6 0
3 years ago
Read 2 more answers
The angle between the axes of two polarizing filters is 45.0^\circ45.0 ​∘ ​​ . By how much does the second filter reduce the int
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Answer

given,                                                                      

angle between two polarizing filters = 45°

filter reduce intensity = ?                          

a) I = I₀ Cos² θ                                

here θ = 45⁰                                

I = \dfrac{I_0}{2}                      

intensity of the light is reduced by 0.500

correct answer from the given option D

b) direction of the polarization                    

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7 0
3 years ago
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