Comments on: Problem Solution Generator

By: Thor

Thor — Sun, 11 Dec 2011 19:48:38 +0000

Is the statement, “The bigger they are, the harder they fall”, true? Explain your answer considering the ideas of scaling and how cross sectional area and volume increase when linear dimensions are increased.

By: Lala

Lala — Tue, 10 Aug 2010 11:10:05 +0000

The human body can survive a negative acceleration trauma incident(sudden stop) if the magnitude of the acceleration is less than 250 m/s2 . If you are in an automobile incident with an initial speed of 105 kph and are stopped by an airbag that inflates from th dahboard, over what distance must the airbag stop for you to survive the crash?

By: denice

denice — Fri, 05 Sep 2008 23:27:27 +0000

i need the answer badly please please answer it thnks a lot
a man was stabbed in the neck.his major blood vessel was punctured. if the wound is 1.8 from the ground and blood is coming out horizontally from the wound as it falls 0.8m away from the man, how fast is blood coming out his artery in the neck?

By: Alex

Alex — Sat, 05 Apr 2008 01:56:16 +0000

How do you solve this problem…

A 0.225 kg sample of tin initially at 97.5 oC is dropped into 0.115 kg of water. The intial temperature of the water is 10 oC. If the specific heat of tin is 230 J/kg*oC, what is the final equilibrium temperature of the tin-water mixture?

By: Pinaki

Pinaki — Fri, 31 Mar 2006 07:02:39 +0000

It is a hell damn thing,

By: Pinaki

Pinaki — Fri, 31 Mar 2006 07:01:50 +0000

An excellent website

By: mujahed

mujahed — Tue, 14 Mar 2006 18:12:48 +0000

A rifle bullet is fired at an angle of 30o below the horizontal with an initial velocity of 800 m/s from the top of the cliff 80 m high. How far from the base of the cliff does it strike the level ground below?

By: mujahed

mujahed — Tue, 14 Feb 2006 17:06:32 +0000

An astronomical unit ( AU ) is defined as the average distance between the Earth and
Sun. ( One light year = 9.46 x 10 m , 1.5 x 10 = 1 AU )
a) How many astronomical units are there in one lightyear?
b) Determine the distance from Earth to the Andromeda galaxy in astronomical units. ( Distance from Earth to the Andromeda galaxy is 2 x 10 m )
2-4. The square of the speed of an object undergoing a uniform acceleration, a is some
function of a and the displacement , s according to the expression v = k a s ,
where k is a dimensionless constant. Show by dimensional analysis that this
expression is satisfied only if m = n =

By: James Clark

James Clark — Fri, 11 Nov 2005 18:45:00 +0000

a block rest on aan inclined plane. a spring to which it is attached via a pulley and string is being pulled downward with gradually increaseing force. the value of us is unknown. find the potential energy U of the spring at the moment when the block begins to move.

By: Chris Moore

Chris Moore — Thu, 08 Sep 2005 13:06:08 +0000

The solutions will be for very common physics problems in introductory classes. Not much more involved than the few already posted.

I’m not offering a problem solving depot, where I’ll solve any problem submitted. But sometimes, students need to see some solved problems to get a feel for how to do it.

The generator will also be used as part of the problem solving email course I’m working on. A guide to the art of problem solving requires showing students some solutions.