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
Bas_tet [7]
2 years ago
13

What one is it for only number 2?

Physics
1 answer:
olga_2 [115]2 years ago
5 0
A is 30kg b is car on top of hill c plane in air d full plane
You might be interested in
. How does the area of a rectangle relate to the lengths of each side?
iragen [17]
Area is 2-dimensional which means it has a length and a width area is measured in square units such as square inches, square feet or square meters. To find the area of a rectangle multiply the length by the width.
3 0
3 years ago
Read 2 more answers
A car moves uphill at 40 km/h and then back downhill at 60 km/h. What is the average speed for the round trip?
jok3333 [9.3K]

Answer:

S_a_v_e_r_a_g_e=48km/h

Explanation:

Ok, the average speed can be calculate with the next equation:

S_a_v_e_r_a_g_e=\frac{Total\hspace{3}distance}{Total\hspace{3}time}   (1)

Basically the car cover the same distance "d" two times, but at different speeds, so:

Total\hspace{3}distance=2*d

and the total time would be the time t1 required to go from A to B plus the time t2 required to go back from B to A:

Total\hspace{3}time=t1+t2

From basic physics we know:

t=\frac{d}{S1}

so:

t1=\frac{d}{S1}

t2=\frac{d}{S2}

Using the previous information in equation (1)

S_a_v_e_r_a_g_e=\frac{2*d}{\frac{d}{S1} +\frac{d}{S2} }=\frac{2*d}{\frac{d*S2+d*S1}{S1+S2} }

Factoring:

S_a_v_e_r_a_g_e=\frac{2*S1*S2}{S1+S2}   (2)

Finally, replacing the data in (2)

S_a_v_e_r_a_g_e=\frac{2*40*60}{60+40} =48km/h

5 0
3 years ago
How are size and mass of the moon different from that of the earth?
Elodia [21]
<span>The diameter of the Moon is 3,474 km. Now, let's compare this to the Earth. The diameter of the Earth is 12,742 km. This means that the Moon is approximately 27% the size of the Earth.</span>
3 0
2 years ago
The order of elements in the periodic table is based on?
ahrayia [7]
It is based on atomic number, which is the number of protons in the nuclei of the atoms of an element.
3 0
3 years ago
Read 2 more answers
I am the particle that is so small that scientists treat me as though I have no mass. Scientists also figure that I probably spe
tatyana61 [14]

Answer:

its electrons

Explanation:

only electrons stays outside the nucleus unlike protons and neutrons and it has little to no mass

8 0
3 years ago
Other questions:
  • A spaceship accelerates from 0 m/s to 60 m/s north in 3 seconds. What is the acceleration of the spaceship?
    13·1 answer
  • 1.<br> Kinetic energy is the energy of _____.
    8·1 answer
  • A car accelerates from rest to 12 m/s in 4 seconds. What is its acceleration?
    12·1 answer
  • Question 5
    9·1 answer
  • Βββββββββββββ<br>fbntdbsv
    13·1 answer
  • Two spectators at a soccer game in Montjuic Stadium see, and a moment later hear, the ball being kicked on the playing field. Th
    11·1 answer
  • Name all of the steps on the Physical Activity Pyramid?
    14·1 answer
  • What is the station 2 code for cupids spread the love escape room?
    10·1 answer
  • 1. Why do certain elements have isotopes?
    7·1 answer
  • 2. Kevin works as a janitor, and he is pushing a fully-
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!