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ElenaW [278]
3 years ago
14

Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60 km/h and the other is m

oving at 40 km/h mph. In how many hours will they meet?

Physics
2 answers:
faltersainse [42]3 years ago
8 0
Their relative speed is the sum of 60 and 40 or 100km/hr. They will travel the 150km in 1.5 hrs.<span>When two object approach each other, the closing speed is just the sum of the speeds, therefore, the closing speed is your case is 100kph. </span>

<span>Just take the distance of 150 km and divide by 100 to get 1.5 hours </span>

<span>checking: </span>

<span>the car going 60 will have traveled 60*1.5 = 90 km </span>
<span>the car going 40 will have traveled 40*1.5 = 60 km </span>

<span>the sum of the distances = 90+60 = 1.5 hours </span>

<span>So they will meet in 1.5 hours.</span>
lana [24]3 years ago
4 0
Hope this helps you.

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Answer:

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If we replace  copper wire with aluminium wire , then resistivity will change .

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3 years ago
Two inductors, L1 and L2, are in parallel. L1 has a value of 25 mH and L2 a value of 50 mH. The parallel combination is in serie
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Answer:

Explanation:

For parallel inductors ,

\frac{1}{L_R} = \frac{1}{L_1} +\frac{1}{L_2}

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7 0
3 years ago
Two clouds collide and form another, more massive cloud. One cloud is stationary, while the other is traveling at 1 m/s. After t
sweet [91]

Answer: 3

Explanation:

Given

One cloud is traveling at rate of u_2=1\ m/s

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3 years ago
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Answer:

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