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
statuscvo [17]
3 years ago
6

The escape velocity of a rocket from the earth is 11kms^-1. Taking the acceleration due to gravity as 9.8ms^-2, calculate the ra

dius of the earth.
Physics
1 answer:
Verizon [17]3 years ago
8 0

Answer:

6.37*10^6 m

Explanation:

We know that,

g = GM/R²

values given to us

acceleration due to gravity = g = 9.8 m/s²

Mass of the earth is= 6.4*10^24

G = 6.67*10^{-11}

implementing

9.8 = 6.67*10^-11 * 6*10^24/R^2

9.8 = 40.02 * 10^13/ R^2

R^2 = 4002/98 * 10^12

R^2 = 40.83* 10^12

R= 6.37*10^6 m   (approximately)

You might be interested in
Answer the question below
Ivan

Answer:

the the right because opposites attract to each other

6 0
3 years ago
Can someone love me pls
dlinn [17]

that's sad that you are trying to find love on this app :(

6 0
3 years ago
Flow around curved height contours requires the incorporation of the centrifugal force. What is the general term to describe the
lilavasa [31]

Answer: Gradient Wind

Explanation:

Gradient wind, is the wind that accounts for air flow along a curved trajectory. It is an extension of the concept of geostrophic wind; for example the wind assumed to move along straight and parallel isobars (lines of equal pressure). The gradient wind represents the actual wind better than the geostrophic wind, especially when both wind speed and trajectory curvature are large, because they are in hurricanes and jet streams.

4 0
3 years ago
A coin placed on the cover of a book just begins to move when the cover makes an angle of 38 degrees with the horizontal. What i
RSB [31]

Answer:

m g sin theta = force of object along incline due to gravity

N μ = frictional of incline on object where N is the normal force

N = m g cos theta     force perpendicular to incline

m g sin theta = N μ = μ m g cos theta

μ  = tan theta = tan 38 = .78

6 0
2 years ago
What are the benefits and drawbacks of using renewable energy sources to generate electricity?
Luden [163]

Answer:

benefits

Diversifying energy supply and reducing dependence on imported fuels.

Creating economic development and jobs in manufacturing, installation, and more.

drawbacks

Large areas of landfill are required

Hydroelectric power is generated from flowing water, which turns turbines and generates electricity

Explanation:

8 0
3 years ago
Other questions:
  • a rocket has a mass 250(10^3) slugs on earth. Specify its mass in si units and its weight in si unites. if the rocket is on the
    5·1 answer
  • A car movingin a straight line starts at x = 0 at t = 0. It passes the point x = 25.0 m with a speed of 11.0 m????s at t = 3.00s
    12·1 answer
  • How far does a car travel if is going 4.0 m/s and accelerates to 3.5m/s2 for 5s ?
    13·1 answer
  • A ball is dropped 5 meters from rest. Using conservation of energy, what is the final velocity of the ball? a.) 5.39 m/s b.) 4.4
    6·1 answer
  • A car drives over the top of a hill that has a radius of 30 m . part a what maximum speed can the car have without flying off th
    9·1 answer
  • An airplane weighs 18,000lbs. The local gravitational acceleration g is 32fps^2. What is the mass of the airplane?
    13·1 answer
  • Which of these statements about mixtures is true? (2 points)
    9·2 answers
  • A light wave travels from one medium into a second medium with a greater absolute index of refraction. Which characteristic of t
    8·1 answer
  • Pangaea was not the first, nor will it be the last, super continent. In the process of continental drift, sometimes chunks of co
    12·1 answer
  • Brittle- would break when struck with force *<br> A-Metal<br> B-Nonmetal<br> C-Metalloid
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!