Describe escape velocity, Physics

Assignment Help:

Q. Escape Velocity

An object will conquer the force of gravity when its kinetic energy in the direction away from earth exceeds its potential energy. We find the smallest kinetic energy required by solving K.E. = P.E..

Then

mv2/2=mgr,

Where m is the mass of object and v is its velocity and g is the acceleration due to gravity and r is the radius of the earth.

Solving for v

v2= 2gr

v =√2gr

Taking the earth's radius as 3960 miles as well as the acceleration due to gravity as 32 feet per second2 we have

V=√232/5280 × 3960

Which reduces to 6.9 miles per second


Related Discussions:- Describe escape velocity

What locations on the sticks to make it balanced, Here's what is given: A....

Here's what is given: A. There are three 1 meter sticks B. There are four weights: Weight #1 = 1kg Weight #2 = 1.2kg Weight #3 = 1.5kg Weight #4 = 2kg The sticks don't hav

What are synthetic rubbers, What are synthetic rubbers? Give the prepa...

What are synthetic rubbers? Give the preparation and structure of any two synthetic rubbers.

Illustrate how temperature measured in fiber optic sensor, Illustrate how t...

Illustrate how temperature measured in fiber optic sensor. Temperature can be measured via using a fiber which has evanescent loss which varies along with temperature. In the f

What is dielectric breakdown, What is dielectric breakdown? Explain briefly...

What is dielectric breakdown? Explain briefly the various factors contributing to breakdowns in dielectrics. Ans.: Electric Breakdown: When the electric field applied across

Liebig condenser (iron), Liebig condenser (iron) A piece of iron pipe l...

Liebig condenser (iron) A piece of iron pipe line as is used for water or electric conduit can be used to make a metal condenser which is much more robust than a glass one. Inl

Iron silicon alloys, Since pure iron is limited because its high eddy curre...

Since pure iron is limited because its high eddy current losses, by incorporating small quantities of other elements in iron good magnetic properties are obtained. The chief alloyi

LAW OF CONSERVATION OF MOMENTUM, EXPLAIN ROADS SAFETY MEASURES USING THE L...

EXPLAIN ROADS SAFETY MEASURES USING THE LAW OF CONSERVATION OF MOMENTUM

Illustrate graphs of current against voltage, Graphs of current against vol...

Graphs of current against voltage for two resistors P and Q are shown in Figure. Determine the value of every resistor.

W is atomic weight and n is the atomic number of an element, If W is atomic...

If W is atomic weight and N is the atomic number of an element, then: (1) Number of e -1 = W- N (2) Number of 0 n 1 = W- N (3) Number of 1 H 1 = W-N (4) Number of 0

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd