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3 years ago

14

Spaceship 1 and spaceship 2 have equal masses of 300 kg. spaceship 1 has a speed of 0 m/s, and spaceship 2 has a speed of 4 m/s.

they collide and stick together. what is their speed?

1 answer:

raketka [301]3 years ago

6 0

Answer:

2 m/s

Step-by-step explanation:

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If 2/5 cup of coconut shavings covers 1/4 of a cake, then how much coconut shavings are needed for one cake? A. 3/5 cup B. 5/8 c

DanielleElmas [232]

The right answer is Option C.

Step-by-step explanation:

Given,

2/5 cup of coconut shavings covers 1/4 of a cake,

$\frac{2}{5}\ coconut\ shavings=\frac{1}{4}\ of\ cake$

For one whole cake, we will multiply both sides with 4;

$4*\frac{2}{5}=\frac{1}{4}*4\\\frac{8}{5} = 1\ cake$

Writing in simplified fraction form;

$1\ cake = 1\frac{3}{5}\ cups$

The right answer is Option C.

Keywords: fractions, multiplication

Learn more about fractions at:

#LearnwithBrainly

6 0

3 years ago

A gas at standard temperature and pressure was measured as having a mass of 1485 grams (g) in a volume of 750 liters (L). Which

tangare [24]

Answer:

Here we will use the relation:

Density = mass/volume.

We know that:

Mass = 1485g

Volume = 750L

Density = 1485g/750L = 1.98 g/L

We do not have the options in order to select the correct one, but knowing this density, we can suppose the possible gases.

Two "common" gases with densities similar to this one are:

Carbon Dioxide, with d = 1.977 g/L

Dinitrogen Monoxide, with d = 1.977 g/L

In both cases, if we round up we will get the same density that we calculated at the beginning, so either of these can be the correct option.

6 0

3 years ago

Suppose that 30% of students prefer to write with a mechanical pencil. suppose we sample students, one at a time, and stop as so

tia_tia [17]

Probability that first student prefers mechanical pen = 0.30
P(first student does not and second student does) = 0.70 * 0.3 = 0.21)

P( selecting 2 or fweer) = 0.30+ 0.21) = 0.51 or 51%

6 0

3 years ago

For each equation, decide if it is always true or never true. x − 13 = x + 1 x + 1 2 = x − 1 2 2 ( x + 3 ) = 5 x + 6 − 3 x x − 3

mrs_skeptik [129]

"x" (and any subsequent words) was ignored because we limit queries to 32 words.

6 0

2 years ago

Can u guys help pls?

Contact [7]

Answer:

$(2 {n}^{2} ) ^{4} \\ 2 \times 2 \times 2 \times 2 \times {n}^{2 \times 4} \\ {2}^{4} \times {n}^{8} \\ = 16 {n}^{8}$

<h3>Answer B is correct</h3>

7 0

3 years ago