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
qaws [65]
3 years ago
14

Consider identical spherical conducting space ships in deep space where gravitational fields from other bodies are negligible co

mpared to the gravitational attraction between the ships. Construct a problem in which you place identical excess charges on the space ships to exactly counter their gravitational attraction. Calculate the amount of excess charge needed. Examine whether that charge depends on the distance between the centers of the ships, the masses of the ships, or any other factors. Discuss whether this would be an easy, difficult, or even impossible thing to do in practice.
Physics
1 answer:
Illusion [34]3 years ago
6 0

Answer:

 q = 8.61 10⁻¹¹ m

charge does not depend on the distance between the two ships.

it is a very small charge value so it should be easy to create in each one

Explanation:

In this exercise we have two forces in balance: the electric force and the gravitational force

          F_e -F_g = 0

          F_e = F_g

Since the gravitational force is always attractive, the electric force must be repulsive, which implies that the electric charge in the two ships must be of the same sign.

Let's write Coulomb's law and gravitational attraction

         k \frac{q_1q_2}{r^2} = G \frac{m_1m_2}{r^2}

In the exercise, indicate that the two ships are identical, therefore the masses of the ships are the same and we will place the same charge on each one.

          k q² = G m²

          q = \sqrt{ \frac{G}{k} }    m

we substitute

           q = \sqrt{ \frac{ 6.67 \ 10^{-11}}{8.99 \ 10^{9}} }   m

            q = \sqrt{0.7419 \ 10^{-20}}   m

           q = 0.861 10⁻¹⁰ m

           q = 8.61 10⁻¹¹ m

This amount of charge does not depend on the distance between the two ships.

It is also proportional to the mass of the ships with the proportionality factor found.

Suppose the ships have a mass of m = 1000 kg, let's find the cargo

            q = 8.61 10⁻¹¹ 10³

            q = 8.61 10⁻⁸ C

             

this is a very small charge value so it should be easy to create in each one

You might be interested in
It took Eric 11 hours to drive to a football game. On the way home, he was able to increase his average speed by 12mph and make
yarga [219]

Answer:

54mph

Explanation:

Speed is defined as the change in distance of a body with respect to time.

Let x be the speed of Eric on his way to the football game, if he used 11hours to the football game, his distance will be the product of his speed and time taken i.e

Distance = speed × time

Distance= x × 11

Distance = 11x... (1)

During his return journey, his speed increases by 12mph with a return drive in only 9hours i.e speed = x+12 and time is 9hours

Since distance = speed × time (return Journey)

Distance = (x+12)×9

Distance = 9x+84...(2)

Note that the distance to and fro the journey is the same as such we will equate equations 1 and 2 to get his initial speed "x" to have;

11x = 9x+84

11x-9x = 84

2x = 84

x = 42mph

This means that his initial speed on his way to the football game is 42mph. Since his speed increases by 12mph during his return drive, his return speed will be 42mph + 12mph which gives 54mph.

6 0
3 years ago
What do glands do for the body?
trapecia [35]

Answer: A gland is an organ which produces and releases substances that perform a specific function in the body.

Explanation: <em>A gland is an organ which produces and releases substances that perform a specific function in the body. There are two types of gland. Endocrine glands are ductless glands and release the substances that they make (hormones) directly into the bloodstream.</em>

3 0
3 years ago
Read 2 more answers
A substance with a pH of 13.0 will
nata0808 [166]
B......................
7 0
3 years ago
Read 2 more answers
Q.No. 8 What is the ratio of the energy per second
inysia [295]

Answer:just search it up

Explanation:

3 0
3 years ago
If you walk North for 40 feet and then walk East for 30 feet, what is your total distance
yarga [219]

Answer:

The person travelled a total distance of (40+30) feet = 70 feet

Displacement= 50feet (im not positive on the displancement)

displacemeny is the shortest distance between two pionts

Explanation:

5 0
3 years ago
Other questions:
  • What is the frequency of a microwave with a wavelength of 3.52 mm?
    11·2 answers
  • A cruise ship sails due south at 2.50 m/s while a coast guard patrol boat heads 19.0° north of west at 4.80 m/s. What are the x-
    8·1 answer
  • 12. An object accelerates 16.3 m/s2 when a force of 4.6 newtons is applied to it.
    7·1 answer
  • Does gravity cause physical weathering or chemical weathering
    12·1 answer
  • Can someone please help me!
    5·1 answer
  • Hydroelectricity provides about 7 percent of the electricity generated in the united states. (a) explain how a hydroelectric pow
    5·1 answer
  • When a driver presses the brake pedal, his car can stop with an acceleration of 5.4 m/s2. How far will the car travel while comi
    13·1 answer
  • What cell processes occour during interphase
    7·1 answer
  • What units is the Metric System of Measurement based on?
    11·1 answer
  • Four rivers have the same volume of water flow over time but fall from the different heights to power hydroelectric dams. which
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!