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
AleksAgata [21]
3 years ago
14

The speed of light is about 3.00 × 105 km/s. It takes approximately 1.28 seconds for light reflected from the

Physics
1 answer:
Ulleksa [173]3 years ago
8 0
Just to correct you - the speed of light is 3.0 x 10^5 km/sec and not 105 km/sec as given by you (maybe it was just a typing mistake from your end).

The average distance between earth and moon would be - 384,000 kms. 

This is calculated by the formula -> Distance = Speed x Time.
 

You might be interested in
Explain how all the organelles in a cell model work together to provide nutrition and energy for the cell.
slega [8]
These organelles are like the organs in a human and they help the cell stay alive. Each organelle has it's own specific function to help the cell survive. The nucleus of a eukaryotic cell directs the cell's activities and stores DNA. Eukaryotes also have a golgi apparatus that packages and distributes proteins.
6 0
3 years ago
A force, F1, of magnitude 2.0 N and directed due east is exerted on an object. A second force exerted on the object is F2 = 2.0
IgorLugansk [536]

Answer:

Magnitude of the force is

F_3 = 2.83

direction of the force is given as

\theta = 45 degree West of South

Explanation:

As we know that force is a vector quantity and in order to find the resultant of two or more forces we need to add them vectorialy

So here we have

\vec F_1 + \vec F_2 + \vec F_3 = 0

here we know that first force is of magnitude 2 N towards east

\vec F_1 = 2 \hat i N

second force is also of 2.0 N due North

\vec F_2 = 2 \hat j

now from above equation

2\hat i + 2\hat j + \vec F_3 = 0

\vec F_3 = -2\hat i - 2\hat j

so magnitude of the force is given as

F_3 = \sqrt{2^2 + 2^2}

F_3 = 2.83

direction of the force is given as

\theta = tan^{-1}\frac{F_y}{F_x}

\theta = tan^{-1}\frac{-2}{-2}

\theta = 45 degree West of South

3 0
3 years ago
Read 2 more answers
Assume patmos=1.00atm. what is the gas pressure pgas? express your answer in pascals to three significant figures.
hodyreva [135]
<span>Answer: Well, let's start by finding the pressure due to the "extra" height of the mercury. p = 1.36e4 kg/m³ · (0.105m - 0.05m) · 9.8m/s² = 7330 N/m² = 7330 Pa The pressure at B is clearly p_b = p_atmos = p_gas + 7330 Pa The pressure at A is p_a = p_gas = p_atmos - 7330 Pa c) 1 atm = 101 325 Pa Then p_gas = 101325 Pa - 7330 Pa = 93 995 Pa</span>
8 0
3 years ago
Read 2 more answers
Studies of gymnasts show that their high rate of injuries to the Achilles tendon is due to tensions in the tendon that typically
konstantin123 [22]
The horizontal components, being opposite in direction, will produce a shearing effect on the tendon, leading to injury. Thus, they will be added.
As the angle of 23 is from the vertical, we calculate the horizontal component by using
Weight acting * sin(23)
And multiply it by 2 to get the total shearing force
The weight acting is 12 times their body weight. Thus:
53 * 9.81 * 12 = 6239.2 Newtons
The total force acting on the tendon:
2 * sin(23) * 6239.2
= 4,880
= 4,900 Newtons (2 significant figures)
5 0
3 years ago
Who do the basic particles of a compound differ from the basic particles of an element
Musya8 [376]
A compound is elements bonding together, an element is the pure substance
4 0
3 years ago
Other questions:
  • José and Laurel measured the length of a stick's shadow during the day. Without knowing the length of the stick, which of their
    10·1 answer
  • A. What are the three longest wavelengths for standing waves on a 240-cm-long string that is fixed at both ends?
    10·1 answer
  • A 2000kg suv accelerates from rest at a rate of 3.00m/s^2. The total amount of force resisting its motion 1500N. How much force
    14·1 answer
  • Formation of a precipitate is usually evidence of?
    7·2 answers
  • What is a force? A. A force is a form of energy. B. A force is equivalent to work. C. A force is a substance that reacts with ma
    11·2 answers
  • What are the base units in the metric system?
    10·2 answers
  • The gravitational force between two objects will be greatest in which of the following situations?
    7·1 answer
  • _SeC16+_O2&gt;_SeO2+_C12
    15·1 answer
  • How are energy sources managed?<br><br> Could you link a site with a good answer?
    10·1 answer
  • The world's largest wind turbine has blades that are 80 m long and makes 1 revolution every 5.7 seconds. What is the velocity fo
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!