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Eva8 [605]
3 years ago
8

A car travels from Boston to Hartford in 4 hours. The two cities are 240 kilometers apart. What was the average speed of the car

during the trip? A. 4 km/hour B. 960 km/hour C. 60 km/hour
Physics
1 answer:
Y_Kistochka [10]3 years ago
6 0

Answer:

Average speed is 60 km/hour

Explanation:

When we need to calculate average speed, we use this equation:

V = \frac{x_{f} - x_{o}}{t_{f} - t_{o}}

Where:   x_{o} = 0 km   position at the beginning

              x_{f} = 240 km   at the end

              t_{o} = 0 hours

              t_{f} = 4 hours

Then:     V = \frac{240 km - 0 km}{4 hours - 0 hours}

              V = \frac{240 km}{4 hours}

Finally    V = 60 km/hour

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Answer:

<h3>n(F) = 4</h3>

Explanation:

Cardinality of a set is the number of elements in that set. Given the set.

F= {mango, apple, banana, orange)​, we are to determine the cardinality of the set i.e the amount of fruit present in the set. Cardinality of the set F is represented as n(F).

Since there are 4 different fruit in the given set F, hence the cardinality of the set F is n(F) = 4

6 0
4 years ago
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Answer:

7.46 J/kg/K

Explanation:

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Which is the same as 7.46 J/kg/K.

7 0
3 years ago
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Mila [183]

Answer:

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525 m/s is the speed

5 0
3 years ago
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Answer:

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Explanation:

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