3 years ago

What happened on march 21 every year in the northern hemisphere

Physics

1 answer:

OLga [1]3 years ago

4 0

Answer:

B. The Spring equinox

Explanation:

The vernal equinox marks the moment the sun crosses the celestial equator. The vernal equinox happens on March 19, 20, or 21 every year in the Northern Hemisphere. In the Southern Hemisphere, this same event marks the beginning of fall. (Source: What Exactly Is The Spring Equinox? - Dictionary.com)

Hopefully this helps.

You might be interested in

6) Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4

Studentka2010 [4]

Answer:

Amy's speed is 2/3 faster than Bill's

Explanation:

can't believe you don't know how to do this.

3 0

3 years ago

lf an object's velocity changes from 25 meters per second to 15 meters per second in 2.0 seconds, the magnitude of the object's

Mila [183]

Answer:

-5 m/s^2

Explanation:

$acceleration = \frac{change \: in \: velocity}{time} \\ \\ = \frac{15 - 25}{2} \\ \\ = \frac{ - 10}{2} \\ \\ = - 5 \: m {s}^{ - 2} \\ \\ negative \: sign \: represents \: that \: \\ object \: is \: slowing \: down.$

6 0

3 years ago

Read 2 more answers

You push an object with 67 N of force and move it 20 m. How much work did you do?

Stella [2.4K]

Answer:

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 67 × 20

We have the final answer as

Hope this helps you

6 0

3 years ago

7. A 600g brick weighs 6N in the air. If the brick displaces 2N of water when it is

Oxana [17]

The answer to this would be 12N

6 0

3 years ago

A speed boat travels from the dock to the first buoy a distance of 20 meters in 18 seconds it began the trip at a speed of 0 m/s

Lunna [17]

Answer:

1.11 m/s

Explanation:

The motion of the boat is an example of accelerated motion, since the velocity is not constant. However, we don't need to find the acceleration, because we are only interested in the average velocity of the boat, which is given by:

$v=\frac{d}{t}$

where d is the total distance covered and t the time taken. In this problem, the boat covered a distance of d = 20 m and it takes t = 18 s, therefore the average velocity is

$v=\frac{20 m}{18 s}=1.11 m/s$

6 0

3 years ago

What happened on march 21 every year in the northern hemisphere​

What happened on march 21 every year in the northern hemisphere