3 years ago

What is the average speed of a car that moved 40 km in 3 hours?

Physics

1 answer:

Naya [18.7K]3 years ago

3 0

<u>A</u> would be the answer, since it would take about 3 hours to cover most of it, 10km/h would be the average speed.

really hope this helps.

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a student calculates experimentally the value of density of an iron as 4.4 gcm³. if the actual density of an iron is 7.6 gcm³, c

ser-zykov [4K]

Hola!

Percentage Error is a measurement of the discrepancy between an observed and a true, or accepted value.

[ refer the attachment. ]

According to Question,

% error = $\frac{7.4 - 7.6}{7.6}$ × 100

= 2.631 % = 2.7 % (approximately.)

hope it helps!