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
Charra [1.4K]
3 years ago
11

How do I calculate the speed of light and the distance between the earth and the moon?

Physics
1 answer:
MAVERICK [17]3 years ago
7 0

To calculate the distance to a star, astronomers observe it from different places along Earth's orbit around the Sun. If they measure the object's position several months apart, their "two eyes" will have a separation of well over 100 million miles!

You might be interested in
Rubric for Grading O Activity3. Answer me! Directions: Compare and contrast the scientific method in philosophy and in science.
emmasim [6.3K]
Yeah yeah I just got a hold of you and I saw that you were doing a good job and I thought you were doing a good job and I thought you were doing a good job and I thought you were doing a good job and I thought you were doing a good job and I thought you were doing a good job and I thought you were doing a good job and I thought you were doing a good job and I thought you were doing a good job and I thought you were doing a good job and I thought you were doing a good job and I thought you were doing a good job.
7 0
3 years ago
During intercourse, Lydia constantly worries whether her partner thinks she is
Misha Larkins [42]
Answer is c spectatoring
6 0
3 years ago
A negative charge of -2.0 C and a positive charge of 3.0 C are separated by 80 m. What is the electrostatic force between the tw
faltersainse [42]

Answer:

1. 8437500 N

2. The force between the two charges is attractive.

Explanation:

1. Determination of the force between the two charges.

Charge 1 (q₁) = –2.0 C

Charge 2 (q₂) = 3.0 C

Distance apart (r) = 80 m

Electrical constant (K) = 9×10⁹ Nm²/C²

Force (F) =?

F = Kq₁q₂ / r²

F = 9×10⁹ × 2 × 3 / 80²

F = 5.4×10¹⁰ / 6400

F = 8437500 N

Thus, the force of attraction between the two charges is 8437500 N

2. From the question given, the charges are:

Charge 1 (q₁) = –2.0 C

Charge 2 (q₂) = 3.0 C

We understood that like charges repels while unlike charges attract. Since the two charges (i.e –2 C and 3 C) has opposite signs, it means they will attract each other.

Thus the force between them is attractive.

6 0
3 years ago
An object is thrown upward from the top of a 144​-foot building with an initial velocity of 128 feet per second. The height h of
ankoles [38]

Answer:

After 9 seconds the object reaches ground.

Step-by-step explanation:

We equation of motion given as h = -16t²+128t+144,

We need to find in how many seconds will the object hit the ground,

That is we need to find time when h = 0

                        0 = -16t²+128t+144

                       16t²-128t-144= 0

                       t=\frac{-(-128)\pm \sqrt{(-128)^2-4\times 16\times (-144)}}{2\times 16}\\\\t=\frac{128\pm \sqrt{25600}}{32}\\\\t=\frac{128\pm 160}{32}\\\\t=9s\texttt{ or }t=-1s

Negative time is not possible, hence after 9 seconds the object reaches ground.

8 0
3 years ago
How large is the acceleration of a 25 kg mass with a net force of 75 N applied horizontally to it?
Sveta_85 [38]

Answer:

Explanation:

F = ma

a = F/m

a = 75/25

a = 3 m/s²

8 0
2 years ago
Other questions:
  • Which body exerts the force that propels the sprinter, the blocks or the sprinter?
    9·1 answer
  • Can you tell me at least three states of matter that are fluids?
    5·1 answer
  • A sprinter has a mass of 80kg and a kinetic energy of 4000 j. What is the sprinter's speed
    11·1 answer
  • Which way does the friction arrow go in a free body diagram for a moving object point
    5·2 answers
  • Define wheel and axle in science terms
    9·1 answer
  • A train travels 98 kilometers in 1 hours, and then 78 kilometers in 3 hours. what is its average speed?
    14·1 answer
  • A proton is a subatomic particle that carries a ___________ charge
    8·1 answer
  • A _____ is a model of an atom in which each dot represents a valence electron
    8·1 answer
  • Should I take physics or biology?
    10·2 answers
  • When three people with a total mass of 2.00 x 102 kg step into their 1.200 x 103 kg car, the car’s
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!