1. As dry air moves upward, it expands and, in so doing, cools at a rate...

1. As dry air moves upward, it expands and, in so doing, cools at a rate of about 1oC for each 100-meter rise, up to about 12 km. If the ground temperature is 10oC on the ground, what range of temperatures can be expected if an airplane takes off and reaches a maximum height of 4 km? (1 km = 1000 meters

2. What amount of a 15% HCL acid solution must be mixed with a 20% HCL acid solution to obtain 50 milliliters of 18% solution?

3. A telephone company offers two long-distance plans:Plan A: $25 per month and $.05 per minutePlan B: $5 per month and $.12 per minuteFor how many minutes of long-distance calls would Plan B be financially advantageous?

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Colby Messinger answered 2 years ago

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