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
Licemer1 [7]
3 years ago
10

Please help. Dont put a random answer plz.

Mathematics
1 answer:
Alenkasestr [34]3 years ago
5 0

Answer:

Explination:

Work:

You might be interested in
See question in attached photo.<br>Answer question 4b and 5c​
sdas [7]

9514 1404 393

Answer:

  4b: 8.6 m/s²; 1.3×10^5 N; 2.1×10^4 N decrease

  5c: -1.6×10^12 J; -1.6×10^12 J

Step-by-step explanation:

<h3>4b</h3>

i) The acceleration due to gravity is inversely proportional to the square of the distance between the objects. The distance to the shuttle is ...

  1 + (5×10^5)/(6.4×10^5) = 69/64 . . . times the radius of the earth

Then the acceleration due to gravity at the height of the space shuttle is about ...

  (10 m/s²)(64/69)² ≈ 8.6 m/s²

__

ii) The weight of the space shuttle at that height is about ...

  F = ma = (15000 kg)(8.6 m/s²) ≈ 1.3×10^5 N

__

iii) The loss of weight will be ...

  ΔF = m(a1 -a0) = (15000 kg)(10 m/s² -8.6 m/s²)

  = 1.5×10^4×1.4 N = 2.1×10^4 N

____

<h3>5c</h3>

i) The gravitational potential energy is given by ...

  U = -GMm/r

where M and m are the mass of the earth and the rocket, respectively.

  U = -(6.67×10^-11)(6.0×10^24)(2.5×10^4)/(6.4×10^6) ≈ -1.6×10^12 J

__

ii) At a height of 3×10^4 m, the denominator in the above expression changes from 6.4×10^6 to 6.43×10^6. This changes the gravitational potential energy by a factor of 6.4/6.43 to -1.6×10^12 J

(Note: we're carrying only 2 significant figures in the result in accordance with the rules for precision in such calculations. The change is noticeable at the level of the 4th significant figure, less than 1/2%.)

4 0
2 years ago
Match the y coordinate with coo responding pairs of x
Anika [276]
<h3>Answer:</h3><h3>◎ See the attachment photo. </h3>

<h3>◎ Don't forget to thanks</h3><h3>◎ Mark as brainlist. </h3>

6 0
2 years ago
"Mia jogs 3 kilometers in 20 minutes. There are about 0.6 miles in a kilometer. What is Mia’s approximate speed in miles per min
Nataly [62]
B. 0.09 miles per minute
4 0
3 years ago
8. Solve the following equation. w - 2 = - 3
Alina [70]

Answer:

c. w = -1

Step-by-step explanation:

you have to add 2 with -3 and you get -1.

5 0
3 years ago
Read 2 more answers
What is PA <br> Enter your answer in the box
SSSSS [86.1K]

Answer:

3

Step-by-step explanation:

P is the in-center

⇒PA=PE=PD because they are in-radius of the in-circle

We know that, tangent segments drawn from a point outside the circle are always equal in length

⇒DK=EK=7.2

In right triangle PKE,

using Pythagoras' Theorem : PK^{2}=PE^{2}+KE^{2}

⇒PE^{2}=PK^{2}-KE^{2}

⇒PE=\sqrt{PK^{2}-KE^{2} }

⇒PE^{2}=\sqrt{7.8^{2}-7.2^{2}} }

⇒PE=3

Therefore, PA=3

3 0
3 years ago
Other questions:
  • Money off coupons has been circulated to 300 house holds.only 2/5m of these were redeemed (used) in the local supermarket to get
    14·1 answer
  • Is one flag a translation image of the other, or a rotation image? Explain.
    7·2 answers
  • 1. What is 350 in 2,254.58 in percentage?
    6·2 answers
  • Each of the digits 7, 5, 8, 9 and 4 is used only one to form a three digit integer and a two digit integer. If the sum of the in
    7·1 answer
  • Use tools when using fraction strips how do you know that two fractions are equivalent
    14·1 answer
  • Box 1 contains 3 blue and 5 red balls, whereas Box 2 contains 2 blue and 4 red ball. A ball is randomly chosen from Box 1 and th
    12·1 answer
  • Write the expression (14ab^5)(4abc-^3) using a single exponent
    11·1 answer
  • How many more students arrive by school bus than by car?
    13·1 answer
  • Which expression is represented by the model? <br><br> A: x-3<br> B: x+3<br> C: -x-3<br> D: -x+3
    14·2 answers
  • Show that √(1-cos A/1+cos A) =cosec A - cot A​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!