3 years ago

Is a lump of coal chemical energy

Physics

1 answer:

AVprozaik [17]3 years ago

5 0

Answer:

well, not unless the coal is reacting with something. if it's just sitting there, then it can't power anything.

Explanation:

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A ball is dropped from a height of 1m. If the coefficient of restitution between the ball and the surface is 0.6, what is the he

gtnhenbr [62]

Answer:

0.7

Explanation:

1 + 0.6 = 0.7 I think

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7 0

3 years ago

Find the 24th term of the arithmetic sequence 11, 14, 17, … . Express the 24 terms of the series of this sequence using sigma no

Anna71 [15]

Answer:

The 24th term is 80 and the sum of 24 terms is 1092.

Explanation:

Given that,

The arithmetic series is

11,14,17,........24

First term a = 11

Difference d = 14-11=3

We need to calculate the 24th term of the arithmetic sequence

Using formula of number of terms

$t_{n}=a+(n-1)d$

Put the value into the formula

$t_{24}=11+(24-1)\times3$

$t_{24}=80$

$t_{24}=u_{24}=80$

We need to calculate the sum of the first 24 terms of the series

Using formula of sum,

$S_{n}=\dfrac{n}{2}(a+u_{24})$

Put the value into the formula

$S_{n}=\dfrac{24}{2}\times(11+80)$

$S_{n}=1092$

Hence, The 24th term is 80 and the sum of 24 terms is 1092.

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4 years ago

The pilot of an airplane notes that the compass indicates a heading due west. the airplane's speed relative to the air is 130 km

Alja [10]

I got 21 once I answer that question

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3 years ago

According to Newton's First Law (the Law of Inertia) -

Nana76 [90]

Answer:

Explanation:

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3 years ago

10. A pitcher in a professional baseball game throws a fastball, giving the baseball

Juli2301 [7.4K]

Answer: 40.2m/sec

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3 years ago