1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Pavel [41]
3 years ago
7

Astronomers determine that a certain square region in interstellar space has an area of approximately 2.4 \times 10^72.4×10 ​7 ​

​ (light-years)2, where a light-year is a unit of astronomical distance. Assuming that this region is a square, then a single side of the square would be approximately how many light-years long?
Physics
1 answer:
mafiozo [28]3 years ago
5 0

Answer:

1.5 × 10³⁶ light-years

Explanation:

A certain square region in interstellar space has an area of approximately 2.4 × 10⁷² ​​ (light-years)². The area of a square can be calculated using the following expression.

A = l²

where,

A is the area of the square

l is the side of the square

l = √A = √2.4 × 10⁷² ​​ (light-years)² = 1.5 × 10³⁶ light-years

You might be interested in
A cadillac escalade has a mass of 2 569.6 kg, if it accelerate at 4.65m/s2 what is the net force of the car
anygoal [31]
Force is equal to mass multiplied by acceleration, therefore 
F=ma
m=2569.6 kg
a=4.65m/s^2
therefore F=2569.6*4.65=11948.6 (correct to 1 d.p.)
3 0
3 years ago
You stand new the earth's equator. A positively charged particle that starts moving parallel to the surface of the earth in a st
Talja [164]

Answer:

c. from south to north

Explanation:

since we know that:

F = qv×B

where F is the force and in this case is pointed upward

where v is the velocity due east

the field must be due north by the right hand rule

Therefore,  near the equator the magnetic field lines of the earth are directed north from south

3 0
3 years ago
A merry-go-round is rotating at constant angular speed. Two children are riding the merry-go-round: Ana is riding at point A and
marysya [2.9K]

Answer:

bobby has a greater magnitude of velocity because because when angular speed is constant linear velocity is proportional to radius of the circular path

B. They both have same magnitude of angular velocity since the angular speed of the merrygoround is constant

C. Also they both have the same tangential acceleration because the angular speed is constant and tangential is zero for both of them

D. Centripetal acceleration of Bobby is greater

E.they both have the same angular acceleration because angular Speed I constant so angular acceleration is zero for both

3 0
3 years ago
A housefly walking across a clean surface can accumulate a significant positive or negative charge. In one experiment, the large
Lisa [10]

Answer:

4.56*10^8 \text{    electrons.}

Explanation:

Since the fly accumulated a positive charge of +73pC, it must have lost an equal number of negative charge of -73pC to the surface (because the housefly was neutral to begin with).

Therefore, to answer our question we have to ask ourselves <em>how many electrons combine to make -73pC of charge? </em>

The answer is since one electron carries a charge of -1.6*10^{-19}C, the number n of electrons that make up -73pC (-73*10^{-12}C) are

n= \dfrac{-73*10^{-12}C}{-1.6*10^{-19}C/e}

\boxed{n= 4.56*10^8e.}

Thus, the housefly lost about 456 million electrons to the surface!

4 0
3 years ago
The molecule arrangement of ice, water and steam are very different. _______ has the most ordered arrangement, ______ has the ne
Elis [28]

<u>Answer </u>

A) Ice, water, steam

<u>Explanation </u>

Ice is inform of a solid. Solids have particles that are tightly packed and they are in a regular pattern. For this reason they have the most ordered arrangement.

Water is a liquid. It has particles that are closely together but they are not in regular arrangement. For this reason they are next after ice.

Steam is in gaseous state. Gases have particles that are well separated with no definite arrangement. Hence they are the least in the order of molecule arrangement.




3 0
2 years ago
Read 2 more answers
Other questions:
  • A beetle crawls from x=1.09m to x=2.55m in 12.8s. what was the average velocity?
    12·1 answer
  • Before hanging new William Morris wallpaper in her bedroom, Brenda sanded the walls lightly to smooth out some irregularities on
    14·1 answer
  • The initial speed of a body is 7.1 m/s. What is its speed after 2.23 s if it accelerates uniformly at 2.64 m/s 2 ? Answer in uni
    12·1 answer
  • Can somebody help me with this I need to pass
    9·1 answer
  • A load of bricks is lifted to the second floor of a building. How do work and power relate to this job?
    12·2 answers
  • A truck with a mass of 1370 kg and moving with a speed of 12.0 m/s rear-ends a 593 kg car stopped at an intersection. The collis
    7·1 answer
  • 4. A box of books weighing 325 N moves at a constant velocity across the floor when the box is pushed with a force of 425 N exer
    5·1 answer
  • Why is the process of photosynthesis important to food webs?
    9·1 answer
  • Is the answer 1.05m?? help me please. i just want to confrim my answer :3
    13·1 answer
  • PLS HELP THIS IS WORTH 180 PTS!!(PLUS I WILL MARK BRAINIEST IF SOMEONE ANSWERS CORRECTY FIRST)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!