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
Oksanka [162]
2 years ago
6

69) Half-way to the center of a planet of uniform density, your weight compared to that at the surface would be :

Mathematics
1 answer:
mel-nik [20]2 years ago
7 0

Answer:

One- half

Step-by-step explanation:

Since the density is uniform  

Mass of the sphere = [(4/3) π r^3] d

where d is the uniform density.

Mass of the sphere = [(4/3) π d] r^3 = k r^3

where k = [(4/3) π d] is a constant  

Weight = mg = G m M / r^2 = G m [k r^3] /r^2 = G m k r

Using Gauss’ law for gravitation,

Half way to the center of a planet the weight is only due to the inner sphere and the outer sphere does not contribute to his weight,  

Inside his weight is mg’ = (G m k  r) /2   = mg/2  

Answer is one-half.

You might be interested in
Is it a function ?<br> {(0,1), (2,4), (0,-2), (9,10)}
yKpoI14uk [10]
Yes because for every x value there is only one y value that corresponds it that being said y values can be repeated but only x values can not
8 0
2 years ago
Read 2 more answers
You drive 132 miles in 3 hours. At<br> that speed, how many miles could you drive in 4 hours?
sasho [114]

Answer:

You would divide 132 by 3 to get the unit rate of 44 mph. Then multiply by 4 to get 176 miles in 4 hours

Step-by-step explanation:

8 0
3 years ago
Is every natural number a rational number.
kolezko [41]
True
False
False
True
False
False
8 0
3 years ago
What is the y and x intercepts .
hichkok12 [17]

Answer:

y-intercept: (0, -5)

x-intercepts: (-5, 0) , (1, 0)

4 0
2 years ago
Hearts win. In a new card game, you start with a well-shuffled full deck and draw 3 cards without replacement. If you draw 3 hea
Afina-wow [57]

Answer: −1.409

Step-by-step explanation:

Probability of drawing 3 hearts: 13/52 * 12/51 * 11/50 = 0.013

Probability of drawing 3 black cards: 26/52 * 25/51 * 24/50 = 0.118

Probability of other draw: 1 - 0.013 - 0.118 = 0.869

0.013 * (50 - 5) = 0.585

0.118 * (25 - 5) = 2.353

0.869 * (0 - 5) = -4.347

Expected value: 0.585+ 2.353 - 4.347 = -1.409

7 0
3 years ago
Other questions:
  • What is product of 3 1/3 * 2 1/6 in its simplest form
    10·2 answers
  • 89,420 ÷ 27 <br><br> Please give me a good explanation.and step by step
    14·1 answer
  • If r is a linear function with the slope that is not equal to zero which of the following is always true of its inverse function
    8·1 answer
  • On this chapter quiz for this course you can study for up to four hours If you don't study at all you will get a 70. One hour wo
    6·1 answer
  • Lisa purchased a prepaid phone card for 25. Long distance calls cost 9 cents a minute using this card. Lisa used her card only o
    10·1 answer
  • If 2 pizzas cost $16.22, how much would 6 pizzas cost?
    7·1 answer
  • Over 20 years, the population of a town
    14·2 answers
  • 1 point
    12·1 answer
  • A certain type of bacteria doubles every hour. If you have two cells of this bacteria, how many will you have at the end of the
    9·1 answer
  • Solve each inequality 3+1/2(3-x)&lt;-7
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!