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
saw5 [17]
3 years ago
10

What happens during an equinox?

Physics
1 answer:
MAVERICK [17]3 years ago
6 0
The sun is directly above the equator of the earth. There is approximately equal length of night and day all over the earth.

The two dates associated with equinox during the year are around March 20 and September 23.
You might be interested in
A space vehicle accelerates uniformly from 85 m/s at t = 0 to 164 m/s at t = 10.0 s .How far did it move between t = 2.0 s and t
creativ13 [48]

First, we have a change in the velocity from 85 to 164 m/s in 10 sec.

Then, we calculate the <u>acceleration </u>as:

a=\frac{v_{f}-v_{i} }{t} =\frac{164-85}{10}=7.9 m/s^2

Hence we need to calculate the velocity of the space vehicle at t = 2 sec using the first equation of motion:

v_{f}=v_{i}+at=85+7.9*2=100.8m/s

Then, using the second equation of motion to calculate the distance:

d=v_{i}  t+\frac{1}{2}at^2

d=100.8*2+\frac{1}{2}*7.9*(2)^2=217.4m

5 0
3 years ago
Read 2 more answers
A 0.280 m radius, 475 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a
KonstantinChe [14]
Hope it helps u mate. Plz follow me .

8 0
3 years ago
Describe how tree rings indicate time. Do the same for ice cores and varves?
tatyana61 [14]

Answer:

counting tree rings can indicate age

Explanation:

hope i helped at least a little bit :)

7 0
3 years ago
In Challenge Example 11.9 (p. 280), after the explosion, suppose that the m1 fragment shot directly north at 12 m/s and the m3 f
Inga [223]

The question is incomplete. The mass of the object is 10 gram and travelling at a speed of 2 m/s.

Solution:

It is given that mass of object before explosion is,m = 10 g

Speed of object before explosion, v = 2 m/s

Let $m_1, m_2 \text{ and}\ m_3$ be the masses of the three fragments.

Let $v_1, v_2 \text{ and}\ v_3$ be the velocities of the three fragments.

Therefore, according to the law of conservation of momentum,

$mv=m_1v_1 +m_2v_2+m_3v_3$

$10 \times 2  \hat i=3 \times 12 \hat{j} + 3(v_{2x} \hat{i}+v_{2y} \hat{j})-4 \times 9 \hat{j}$

So the x- component of the velocity of the m2 fragment after the explosion is,

$3v_{2x} = 20$

∴ $v_{2x} = 6.67 \ m/s$

6 0
3 years ago
This particle would have to have at least how many protons in order to have a positive charge?
jasenka [17]

Answer: You don't do work.

Explanation: If you don't do the work you don't have to ask this question. With work comes labor. With labor comes change. With change comes resistance and people do not like change. IT causes anger, so if you stop doing work and stick to the important supply like food, water, and shelter you don't have to go through the trouble of this and we can live in a peaceful environment for this world to be better than it is. People do to much, it's a natural fact but you can change the entire picture. If you read all of this thank you for accepting the fact of life.

6 0
3 years ago
Other questions:
  • What is the formula for time? (something like speed *distance=time??)?
    12·1 answer
  • Jet aircraft maintenance crews are required to wear protective earplugs. Members of a particular crew wear earplugs that reduce
    13·1 answer
  • What is transpiration
    6·1 answer
  • A plane wall of thickness 0.1 mm and thermal conductivity 25 W/m K having uniform volumetric heat generation of 0.3 MW/m3 is ins
    13·1 answer
  • A gas is stored in a cylinder at a pressure of 6.0x10^5 N/m^2 and at a temperature of 10°C will be the change of the volume of t
    13·1 answer
  • Two 2.0-cm-diameter insulating spheres have a 6.60 cm space between them. One sphere is charged to + 76.0 nC , the other to - 30
    10·1 answer
  • The wave function for a particle must be normalizable because:________ a. the particle's angular momentum must be conserved. b.
    13·1 answer
  • What is the length x of the side of the triangle below? (Hint: use the cosine function.)
    8·1 answer
  • You throw a football straight up. Air resistance can be neglected. When the football is 4.00 mm above where it left your hand, i
    14·1 answer
  • what specific heat of water explains why the climate doesn't vary much with season in places near large body water​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!