Recent content by e.pramudita

Homework Statement https://dl.dropbox.com/u/63664351/Physics/Electromagnetic%20Induction.PNG https://dl.dropbox.com/u/63664351/Physics/Electromagnetic%20Induction%20Answers.PNG Homework Equations W=mas. Unknown relation between W v and BThe Attempt at a Solution dW = m a ds = m dv/dt ds dW/dv...

How about the second part?

There is a restriction

Can you give more explanation on how to solve it?

Homework Statement If three different number are taken from the set {0, 1, 3, 5, 7} to be used as the coefficient of a standard quadratic equation, how many such quadratic equations can be formed? How many of these have real roots?Homework Equations The Attempt at a Solution Part a: "How many...

Homework Statement https://dl.dropbox.com/u/63664351/Physics/MECH1.PNG Homework Equations Sum of Forces and Torque = 0 The Attempt at a Solution I found similar problem here: http://farside.ph.utexas.edu/teaching/301/lectures/node133.html Why is there no vertical reaction on a...

Homework Statement https://dl.dropbox.com/u/63664351/Physics/ELEC1.PNG Homework Equations http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/wirfor.html https://dl.dropbox.com/u/63664351/Physics/Magnetioc%20Force%20Between%20Wires.PNG The Attempt at a Solution We want the tension to be zero...

Ah sorry I posted in the wrong thread. Can't delete. Edit only. Sorry I'm a newbie.

Thanks!

Isn't this what lead to the failure in 10th mission of Space Shuttle disaster? Finally Richard Feynman, a physicist, is the one who uncovered the cause of the disaster despite his inexperience with NASA and outer space mission. During his investigation he also found out that there were very...

Engineering in Higher Education -- significant figures I am currently in my 4th semester. It seems that every engineering textbooks I encounter have no regard of significant figures (SF). Every problems and examples I encounter are like that. Mostly integers, some have decimal figures, but...

Thanks you all for your responses! Still confused with conversion. For example \ln \frac{46°F}{70°F} ≠ \ln \frac{506°R}{530°R} If the units inside ln are the same, then the number inside ln is without unit (the units cancel each other). Thus how come the calculations above are not equal...

Homework Statement On a certain day the barometric pressure at sea level is 30.1in.Hg, and the temperature is 70°F. The pressure gage in an airplane in flight indicates a pressure of 10.6psia, and the temperature gage shows the air temperature to be 46°F. Estimate as accurately as possible the...

QUESTION Rainwater collects behind the concrete retaining wall shown in the figure. If the water saturated soil (specific gravity 2.2) acts as a fluid, determine the force and center of pressure on a 1-m width of the wall. PROBLEM 1. What does it mean by 1-m width of the wall? Is it 1-m...