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
Galina-37 [17]
3 years ago
7

A planet has two

Physics
1 answer:
lozanna [386]3 years ago
7 0
Kepler's third law hypothesizes that for all the small bodies in orbit around the
same central body, the ratio of (orbital period squared) / (orbital radius cubed)
is the same number.

<u>Moon #1:</u>  (1.262 days)² / (2.346 x 10^4 km)³

<u>Moon #2:</u>  (orbital period)² / (9.378 x 10^3 km)³

If Kepler knew what he was talking about ... and Newton showed that he did ...
then these two fractions are equal, and may be written as a proportion.

Cross multiply the proportion:

(orbital period)² x (2.346 x 10^4)³ = (1.262 days)² x (9.378 x 10^3)³

Divide each side by (2.346 x 10^4)³:

(Orbital period)² = (1.262 days)² x (9.378 x 10^3 km)³ / (2.346 x 10^4 km)³

               =  0.1017 day²

Orbital period = <u>0.319 Earth day</u> = about 7.6 hours.
You might be interested in
5. How does privatization contribute to productivity?
tangare [24]

Answer:

increased competition

Explanation:

3 0
1 year ago
A particle moving on a plane curve what is the degree of freedom
kirill115 [55]

A particle confined to move along a curved path has only one degree of freedom. inclined plane are some examples of constrained motion. Every condition of constraint reduces the number of degree of freedom by one.

I hope this helps!

7 0
3 years ago
5) A person holds a 1.7 kg bucket and lets it move down at
Elena L [17]

Answer:

12.5J

Explanation:

Given parameters:

Mass of bucket  = 1.7kg

Height  = 75cm  = 0.75m

Unknown;

Work done on the bucket by the person  = ?

Solution:

To solve this problem, we use the work done equation;

  Work done  = force x distance  = mgh

 m is the mass  

  g is the acceleration due to gravity

  h is the height

Now, insert parameters and solve ;

     Work done  = 1.7 x 9.8 x 0.75  = 12.5J

7 0
2 years ago
A doubly ionized molecule (i.e., a molecule lacking two electrons) moving in a magnetic field experiences a magnetic force of 5.
Kobotan [32]

Explanation:

The given data is as follows.

           F = 5.75 \times 10^{-16} N

          q = 1.6 \times 10^{-19} C

          v = 385 m/s

       sin (63.9^{o}) = 0.876

Now, we will calculate the magnitude of magnetic field as follows.

              B = \frac{F}{qv sin (\theta)}

                  = \frac{5.75 \times 10^{-16} N}{1.6 \times 10^{-19} C \times 385 m/s \times 0.876}

                  = 0.01065 \times 10^{3} T

                  = 10.65 T

Thus, we can conclude that magnitude of the magnetic field is 10.65 T.

4 0
3 years ago
explain the production of current with the help of a magnet and describe which device works on this phenomena
spin [16.1K]

Answer:

Explanation:

The properties of magnets are used to make electricity. Moving magnetic fields pull and push electrons. ... Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current.

4 0
2 years ago
Other questions:
  • A toy car is tied to a string and pulled across a table horizontally. Which is the
    10·2 answers
  • Based on Newton’s First Law, what would you expect to happen to a block that is pushed across ice and begins moving (You may ass
    9·2 answers
  • Quincia is traveling at a speed of 35 m/s sees a squirrel run across the road in front of her and slams on the brakes. Four seco
    13·1 answer
  • A student sees a newspaper ad for an apartment that has 2330 square feet (ft2) of floor space. How many square meters of area ar
    13·1 answer
  • a force of 20 N acted on a ball thereby imparting an impulse of 70 Ns to the ball. For how long did the force act on the ball?
    10·1 answer
  • A spacecraft that renters the earth’s atmosphere drastically slows down. The amount of kinetic energy the spacecraft has as it r
    11·1 answer
  • The diagram shows the process used in gene therapy.
    12·2 answers
  • Two closed organ pipe gives 4 beats when sounded together at 5°C. Calculate the number of beats in 35°C​
    13·1 answer
  • A boy pushes a stationary box of mass 20 kg with a force of 50 N.
    11·1 answer
  • A motorist travels 130 km in 2 hours.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!