All categories

2 years ago

Help

1 answer:

4 0

The Moon moves around the Earth in an approximately circular orbit, going once around in approximately 27.3 days. The moon orbits quite fast: it moves about 0.5 degrees per hour in the sky. So, its average movement in a day is around 13 degrees. 5 days x 13 degrees is approximately 65 degrees.

You might be interested in

Bowling with a volleyball instead of a bowling ball. Will this make it easier or harder to knock over pins?

riadik2000 [5.3K]

Answer:

Definitely harder, since volleyballs are nowhere near as heavy as bowling balls, it’ll be harder too since there wont be much force to knock over pins

8 0

2 years ago

Here is the reaction of carbamic acid and ammonia to form an amide and water. There is a scheme of a reversible reaction where c

vladimir2022 [97]

Answer:

See explanation

Explanation:

I have attempted to show the sequence of the reaction between carbamic acid and ammonia to form an amide and water and urea.

The reaction first involves the protonation of ammonia to give ammonium carbamate.

When ammonium carbamate is heated to 130-140 degrees, we obtain urea and water as the final products of the reaction

4 0

2 years ago

A balance was tested against a standard calibration mass with a certified value of 200.002 g and produced the following readings

wlad13 [49]

Answer:

Precise but not accurate.

Explanation:

We can tell the performance of the balance is precise, because the repeated measurements give values close to one another.

However, the performance of the balance is not accurate, as the mean value of the repeated measurements (195.587) is not close to the value considered as true (in this case the standard calibration mass with a certified value of 200.002 g).

7 0

2 years ago

Please help, due tomorrow! ツ

oksano4ka [1.4K]

There are two kinds of mixtures

a) homogeneous : the boundary of the two components is not physically distinct

b) heterogeneous:the boundary of the two components is physically distinct

the following separation techniques are common for mixtures

1) filtration: if the two components are forming heterogeneous mixture we can separate them by filtration.

2) boiling: if boiling point of one of the components is less than other

3) magnetic separation: if one of the component is magnetic

4)sieve method: for solid components with difference in size of particles

5) hand picking

Thus the correct match will be as shown in the figure

3 0

2 years ago

Star A has a magnitude of 2. Star B has a magnitude of 5. What is the brightness ratio? A.6.3 : 1 B.15.8 : 1 C.5 : 2 D.2 : 5

Temka [501]

I think the answer is C

3 0

2 years ago