3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

1 answer:

3 0

The third hour increased by 20 percent. The second hour was decreased by 10 percent. So third hour decreased and second hour increased.

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A car starts from rest and accelerates at 2m/s² for 30 seconds. He then travel and constant speed for 1 minute and finally decel

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Answer:

Explanation:

15 miles

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3 years ago

Which quantity can be calculated using the equation E = mc2?

White raven [17]

[ E=mc² ] is not the way to calculate any of those choices.

If there's any "missing mass" after any of those things has happened,
then [ E=mc² ] tells you how much energy the mass has become, and
accounts for the missing mass in that way.

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3 years ago

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Ill give brainlist help pleaseee asap

KIM [24]

Answer:

20. This is a transverse wave.

21. a is a Crest

b is the wavelength

c is the amplitude

d is the trough

e isthe amplitude

f is the wavelength

g is time

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3 years ago

In a thunder and lightning storm there is a rule of thumb that many people follow. After seeing the lightning, count seconds to

lubasha [3.4K]

Answer:

2.837% less than actual value.

Explanation:

Based on given information let's calculate our value.

S = Vxt = 331m/s x 5s = 1655m, that is the total distance that sound would travel in 5 seconds.

1mile = 1609.34meters.

percentage error is.

$\frac{actual-calculated}{actual} *100 = \frac{1609.34-1655}{1609.34} *100 = -2.83%$

negative indicates less than actual value.

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Global winds move warm air toward the _____.

Bezzdna [24]

global winds move warm air toward the poles

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