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
lbvjy [14]
3 years ago
6

A question to think about on units: Suppose we wanted to exchange scientific information with a newly discovered species of inte

lligent life living on a planet orbiting the star Alpha Centauri. And suppose that our new friends have managed to become fluent in our language, but have not yet had the opportunity to visit the Earth. Which of the following statements would they understand?
a. The mass of the electron is 9.10938188 x 10^-31.
b. The speed of light is 2.99792458 x 10^8 meters/second.
c. The ratio of the proton's mass to the electron's mass is 1836.153. Explain your reasoning
Physics
1 answer:
lubasha [3.4K]3 years ago
7 0

Answer:

b. The speed of light is 2.99792458 x 10^8 meters/second.

Explanation:

Speed of light is a universal constant and its value is same throughout the universe . So alien living near Alpha Centauri will quickly understand about it . But other statements are not universal . Mass of electron can vary  as per relativistic formula of Einstein . Similarly , mass of proton can also vary according to relativistic concept . It depends upon the velocity of particle . So, the ratio of mass of proton and mass of electron will also vary from one star to another .

You might be interested in
1. For safety concerning a curve, you should: A. decelerate before the curve
chubhunter [2.5K]
<span>In the question "For safety concerning a curve, you should" the correct answer is "decelerate before the curve" (option A) Decelerating before the curve gives you the opportunity to navigate the curve adequatery and be able to contain any on-coming vehicle.</span>
4 0
3 years ago
Read 2 more answers
Aquatic ecosystems consist of two different layers with respect to light. The photic zone is where light penetrates the water, a
Lostsunrise [7]

Answer: a

Explanation: it talks about how they live without that much light

7 0
4 years ago
Read 2 more answers
Which of the following is a vector quantity?Group of answer choices volume none of the above mass area
KengaRu [80]

Answer:

Area is a vector quantity.

Explanation:

A vector quantity has both magnitudes as well as direction. On the other hand a scalar quantity has only magnitude.

Out of given options,

Volume and mass is a scalar quantity because they don't have directions. While area can be taken as a vector quantity. The direction of area vector of a surface is along perpendicular to the surface.

Hence, the correct option is (d).

7 0
3 years ago
A car is driving at a velocity of 24 m/s. If its brakes can supply an acceleration of -5.0 m/s2, how much time will be required
Lady_Fox [76]
In equation form it reads: 0=24-5x
You can isolate the variable by subtracting 24 from both sides to get -24=5x.
Now all that has to be done is divide both sides by -5, which will result in -4.8=x
3 0
3 years ago
Read 2 more answers
Which of the following has the most biomass? a. quaternary consumers b. secondary consumers c. primary consumers d. producers
elena-s [515]
<h3><u>Answer;</u></h3>

<em>Producers </em>

<h3><u>Explanation;</u></h3>
  • <u><em>Producers </em></u>occupy the lowest level in any food chain or food web. They are the organisms that all other organisms in the food chain rely on.
  • <em><u>Producers </u></em>have the ability to make their own food through the process of photosynthesis where they use energy from sunlight, together with water and carbon dioxide to generate food.
  • The ability of producers to make their own food and the fact that they occupy the lowest level in a food chain means <em><u>they have the highest biomass.</u></em>
4 0
4 years ago
Read 2 more answers
Other questions:
  • A positive charge is moving from the floor of a room toward the ceiling. A magnetic field runs from east to west. In what direct
    7·1 answer
  • A 1200 kg frictionless roller coaster starts from rest at a height of 19 m. What is its kinetic energy when it goes over hill th
    11·1 answer
  • How energy is transferred in a appliance
    6·1 answer
  • If pollution is increased, then the cricket frog population will (increase/decrease/stay the same) over the span of five years.
    13·1 answer
  • *A 0.145 kg baseball reaches a speed of 36 m/s from rest when a bat strikes. If the average force of 500 N was applied on the ba
    7·1 answer
  • The sun rose at 6:54 this morning.<br>is this an observation or inference?
    15·2 answers
  • The gravitational force exerted by an object is given by F 5 mg where F is the force in newtons, m is the mass in kilograms, and
    9·1 answer
  • An 805-kg race car can drive around an unbanked turn at a maximum speed of 54 m/s without slipping. the turn has a radius of cur
    8·1 answer
  • The wave that carrys the most energy are the waves that?
    15·2 answers
  • Two 51 g blocks are held 30 cm above a table. As shown in the figure, one of them is just touching a 30-long spring. The blocks
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!