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
SVEN [57.7K]
3 years ago
5

Use Kepler’s laws and the period of the Moon (27.4 d) to determine the period of an artificial satellite orbiting very near the

Earth’s surface.
Physics
2 answers:
miv72 [106K]3 years ago
7 0

As according to Kepler 's law

T =(4π²r³/ Gm)^1/2

here r= distance  from earth center to satellite = 6400km = 6400000m

G = earth's gravitational constant= 6.67×10^-11

m = mass of earth= 5.98 ×10^24

so T =[ { 4× (3.1416)²×(6400000)³}/ {(6.67×10^-11)×( 5.98 ×10^24)} ]^1/2

T= 5133 sec


natka813 [3]3 years ago
7 0

Answer:

T_2 = 1.40 hours

Explanation:

As per kepler's law of time period we know that

square of time period is proportional to the cube of the distance

so here we can say

\frac{T_1^2}{T_2^2} = \frac{r_1^3}{r_2^3}

so we know that

for moon

T_1 = 27.4 days

r_1 = 384,400 km

r_2 = 6370 km

now from above formula we have

\frac{27.4^2}{T_2^2} = \frac{384,400^3}{6370^3}

T_2 = 0.058 days

T_2 = 1.40 hours

You might be interested in
What are materials that doesn't not use electromagnetism​
lubasha [3.4K]

Answer:

Electric Heater

Explanation

because it uses electrical energy and turns it into heat energy to heat the water.

4 0
3 years ago
What is your hypothesis (or hypotheses) for this experiment?<br> This lab is about density
Zolol [24]
The _____ with less density will sink and the higher density ____ will rise
6 0
3 years ago
Read 2 more answers
The resultant velocity with respect to the ground of a fighter
zhuklara [117]

Answer: 145 km/hr

Explanation:

8 0
3 years ago
Electromagnetic force is present when electromagnetic fields
AlekseyPX

b is the correct answer

4 0
3 years ago
Read 2 more answers
If the earth rock takes 2.00 s to reach its highest point, how long will it take the moon rock to do so
spin [16.1K]

12.0 s

Explanation:

First, let's find the initial vertical velocity of the rock on earth. We know that

vy = v0y - gt

where g = 9.8 m/s^2. When the rock reaches its highest point, vy = 0. So if it takes 2.00 s to reach the maximum height, the initial velocity of the rock is

v0y = (9.8 m/s^2)(2.00 s) = 19.6 m/s.

We know that the moon only has 1/6 of earth's gravity. Therefore, if the same rock is given the same vertical velocity as on earth, then the time it takes to reach its maximum height is

voy = gt ---> t = voy/g

t = (19.6 m/s)/(9.8/6 m/s^2)

= 12.0 s

8 0
3 years ago
Other questions:
  • What is BEST to say about a runner who is running at a constant velocity? A. Their acceleration is positive. B. Their accelerati
    14·2 answers
  • Hufflepuff and Ravenclaw are having their annual tug of war contest. Each team can have 20 students. What is the most important
    13·2 answers
  • Two boats start together and race across a 48-km-wide lake and back. boat a goes across at 48 km/h and returns at 48 km/h. boat
    9·1 answer
  • This nutrient can be hidden in food and has twice as many calories as other nutrients
    12·1 answer
  • Indigenous people sometimes cook in watertight baskets by placing hot rocks into water to bring it to a boil. What mass of 500ºC
    7·1 answer
  • A string is stretched between a fixed support and a pulley a distance 111 cm apart. The tension on the string is controlled by a
    14·1 answer
  • 5 points
    6·1 answer
  • A block with a mass of 1kg moving at a velocity of 3m/s collides and sticks to a block of mass of 4kg initially at rest. What is
    15·1 answer
  • Which element easily loses one electron to form a positive ion?
    7·1 answer
  • What are the effects of global warming in simple words?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!