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
Andreyy89
3 years ago
7

Which of the following explains why parallax is used to measure stars?

Physics
2 answers:
enyata [817]3 years ago
7 0

D, it provides greater accuracy for measuring stars far from the earth.

ale4655 [162]3 years ago
7 0

The answer is "It provides greater accuracy for measuring stars <u>near</u> the earth."

You might be interested in
what is the mass of vertical column of air that exerts pressure of 1 atm over a10m by 10m square surface
Oksana_A [137]

Answer:

m=1.01\times 10^6\ kg

Explanation:

Given that,

Pressure, P = 1 atm = 101325 Pa

Area of the square surface, A = 10² = 100 m²

We need to find the mass of vertical column of air. We know that, pressure is equal to the force acting per unit area. So,

P=\dfrac{mg}{A}\\\\m=\dfrac{PA}{g}\\\\m=\dfrac{101325\times 10^2}{10}\\\\m=1.01\times 10^6\ kg

So, the required mass of the vertical column of air is 1.01\times 10^6\ kg.

4 0
3 years ago
A well chosen lifetime activity is something that should hold a person's interest for a long time.
Masteriza [31]

Answer:

true

Explanation:

as long as you are interested, you are happy

4 0
3 years ago
A measure of how far an object has moved from a starting point
Anvisha [2.4K]
Volume??? velocity??????
5 0
4 years ago
While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 6.95 6.95 m/s. The st
qwelly [4]

Answer:

18.1347 m/s

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

g = Acceleration due to gravity = 9.81 m/s² = a

v^2-u^2=2as\\\Rightarrow s=\dfrac{v^2-u^2}{2a}\\\Rightarrow s=\dfrac{0^2-6.95^2}{2\times -9.81}\\\Rightarrow s=2.4619\ m

Total height the ball falls is 2.4619+14.3 = 16.7619 m

v^2-u^2=2as\\\Rightarrow v=\sqrt{2as+u^2}\\\Rightarrow v=\sqrt{2\times 9.81\times 16.7619+0^2}\\\Rightarrow v=18.1347\ m/s

The speed at which the stone reaches the ground is 18.1347 m/s

8 0
4 years ago
What is the water potential of pure water?
DanielleElmas [232]
Hey :)

The water potential of pure water<span> in an open container is zero because there is no solute and the pressure in the container is zero</span>
3 0
3 years ago
Other questions:
  • How do you find the mechanical advantage of a wheel and axle
    11·1 answer
  • What are the magnitude and direction of the force the pitcher exerts on the ball? (enter your magnitude to at least one decimal
    15·2 answers
  • What value must q2 have if the electric potential at point a is to be zero?
    15·1 answer
  • What is the mass number of an atom with 3 protons, 4 neutrons, and 3 electrons
    13·1 answer
  • The largest stars are _____ times the mass of the Sun. 100 10,000 10 1,000The largest stars are _____ times the mass of the Sun.
    11·1 answer
  • 8. An ant on a picnic table travels 30 cm eastward, then 25 cm northward, and finally 15 cm westward. What is the ant's displace
    10·1 answer
  • The escape velocity on earth is 11.2 km/s. What fraction of the escape velocity is the rms speed of H2 at a temperature of 31.0
    10·1 answer
  • Is burning trash a physical change or chemical change?
    15·1 answer
  • Read the article Watering Livestock with Renewable Energy.
    8·2 answers
  • Is it point<br> A,B,C or D
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!