# 13.3 Gravitational potential energy and total energy  (Page 5/6)

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escape velocity

initial velocity an object needs to escape the gravitational pull of another; it is more accurately defined as the velocity of an object with zero total mechanical energy

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#### Questions & Answers

Is there any calculation for line integral in scalar feild?
Sadia Reply
yes I'm available
Mharsheeraz
what is thrust
Aarti Reply
when an object is immersed in liquid, it experiences an upward force which is called as upthrust.
Phanindra
@Phanindra Thapa No, that is buoyancy that you're talking about...
Shii
thrust is simply a push
Shii
it is a force that is exerted by liquid.
Phanindra
what is the difference between upthrust and buoyancy?
misbah
The force exerted by a liquid is called buoyancy. not thrust. there are many different types of thrust and I think you should Google it instead of asking here.
Sharath
hey Kumar, don't discourage somebody like that. I think this conversation is all about discussion...remember that the more we discuss the more we know...
festus
thrust is an upward force acting on an object immersed in a liquid.
festus
uptrust and buoyancy are the same
akanbi
the question isn't asking about up thrust. he simply asked what is thrust
Shii
a Thrust is simply a push
Shii
how did astromers neasure the mass of earth and sun
papillas Reply
wats the simplest and shortest formula to calc. for order of magnitude
papillas
Distinguish between steamline and turbulent flow with at least one example of each
Aarti Reply
what is newtons first law
Theodore Reply
It state that an object in rest will continue to remain in rest or an object in motion will continue to remain in motion except resultant(unbalanced force) force act on it
Gerald
Thanks Gerald Fokumla
Theodore
Your welcome
Gerald
it states that a body remains in its state of rest or uniform motion unless acted upon by resultant external force.
festus
it that a body continues to be in a state of rest or in straight line in a motion unless there is an external force acting on it
Usman
derive the relation above
jeba Reply
formula for find angular velocity
Mark Reply
w=v^2/r
Eric
Why satellites don't fall on earth? Reason?
Abdur Reply
because space doesn't have gravity
Evelyn
satellites technically fall to earth but they travel parallel to earth so fast that they orbit instead if falling(plus the gravity is also weaker in the orbit). its a circular motion where the centripetal force is the weight due to gravity
Kameyama
Exactly everyone what is gravity?
Tebogo Reply
the force that attrats a body towards the center of earth,or towards any other physical body having mass
hina
That force which attracts or pulls two objects to each other. A body having mass has gravitational pull. If the object is bigger in mass then it's gravitational pull would be stronger.For Example earth have gravitational pull on other objects that is why we are pulled by earth.
Abdur
Gravity is the force that act on a on body to the center of the earth.
Aguenim
what are the application of 2nd law
Sana Reply
It's applicable when determining the amount of force needed to make a body to move or to stop a moving body
festus
coplanar force system
Alex Reply
how did you get 7.50times
Cole Reply
6
Mharsheeraz
what is a frame of reference
PUSELETSO Reply
0.88
Mharsheeraz
0.88
Iize
The system of geometric axis in relation to which measurement of Size, Position, or , Motion can be made. It has two types; 1) Inertial Reference Frame 2) Non Inertial Reference Frame
Abdur
what is science
Lloyd Reply
What is Matter?
Lloyd
what is black body radiations?
mu
matter is anything having some mass and occupies some volume
Debi
a black body radiation it the radiation that absorbs all the EM radiation
Evans
is anything that occuple space
Diamond
I'm new here...I wana askng u how can I prepare any typ of test of atomic energy
gull
What is inertia of bank curve
Sunny
I wanna ask the different between coloumbs law and gravitational law of force
Femi
how do you got 27.8 m/s? please explain
Yusuf Reply

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Source:  OpenStax, University physics volume 1. OpenStax CNX. Sep 19, 2016 Download for free at http://cnx.org/content/col12031/1.5
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