3 years ago

3 write

1 answer:

3 0

Answer:

two method of increasing efficiency of machine are 1st is give lubricants to machine to reduce friction or heat loss and

2nd. is by increasing the input of energy

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skelet666 [1.2K]

Answer: A constellations

Explanation: hope it helps

4 0

3 years ago

larisa86 [58]

Answer:

C.) 1.5 kg

Explanation:

Start with the equation:

$F_n_e_t=ma$

Plug in what you know, and solve:

$18=m(12)\\m=1.5kg$

Find matching soluation:

C.) 1.5 kg

5 0

2 years ago

Slav-nsk [51]

Atomic mass= number of protons + number of neutrons
$55 + 78 = 133$
hope this helps

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3 years ago

madreJ [45]

A. A control group is given the experimental treatment.

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3 years ago

Dmitry_Shevchenko [17]

I think the answer is B

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3 years ago