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statuscvo [17]
3 years ago
10

A train runs from New Delhi to Hyderabad it covers first of 420 km in 7 hours and the next distance of 360 km in 6 hours​

Physics
2 answers:
Mkey [24]3 years ago
5 0

Explanation:

the answer is 16.7 miles or 60kmph

maks197457 [2]3 years ago
5 0

Answer:

II. Gopi takes part in a car race. He drives a distance of 70 km each in the first, second and third hours.

Which of the following statements is true.

a) I, is an example uniform motion and II is an example of non-uniform motion.

b) I is an example of nonuniform motion and II is an example of uniform motion.

c) I and II are examples of uniform motion.

d) I and II are examples of nonuniform motion.

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Given that coal used by electric power plants has a heating value of 27.5 million btus metric ton (25 million btus per ton), det
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Answer:

• 36.4 kg of coal.

• 80 pounds of coal.

Explanation:

Using proportionality constant,

Mass of coal = 1,000,000/27,500,000 btus/metric ton

= 0.0364 metric tons of coal

Mass of coal = 1,000,000/25,000,000 btus/ton

= 0.04 tons of coal.

Converting metric tons to kilogram,

1 metric ton = 1000kg,

0.0364 metric ton;

= 36.4 kg of coal.

Converting tons to pounds,

1 ton = 2000 pounds,

0.04 metric ton;

= 80 pounds of coal.

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