Recent content by runner2392

Please check my work for the first question. The second and third questions, I'm not 100% sure how to solve them. A ssume that a cement truck with a mass of 10,000 kg hits you while you were stopped at a traffic light, and that you are driving a Smart car with a mass of 750 kg. 1. If the...

This applet was used for the hw: http://galileo.phys.virginia.edu/classes/109N/more_stuff/Applets/newt/newtmtn.html Explain or critique the following statement: “Just like Newton’s cannon ball, the moon orbits the Earth because it falls around the earth.” I agree with the statement. Is there...

thanks!

How long would it take a cannon ball to orbit the Earth given that the radius of the earth is 4000 miles and the height of the (quite fictitious) mountain is 800 miles? Me = mass of earth Mc = mass of cannon ball R = Earth's radius v = 2piR/T 4000 mi = 6437200 meters a = acceleration...

figured it out

http://s1140.photobucket.com/albums/n575/sanjanz2392/?action=view&current=Untitled-2.jpg

If a curve with a radius of 89.0m is perfectly banked for a car traveling 71.0km/hr, what is the minimum coefficient of static friction for a car not to skid when traveling at 91.8km/hr? I figured out theta = 24. 03degs from the equations F(normal)*cos(theta) = mg and F(normal)*sin(theta) =...

Yeast are eukaryotic microorganisms that can produce ATP through either fermentation (anaerobic respiration) or cellular respiration (aerobic respiration), depending on whether oxygen is present, similar to animal cells. If oxygen is present, yeast cells consume glucose much more slowly than if...

Problem: "One 2.80kg paint bucket is hanging by a massless cord from another 2.80kg paint bucket, also hanging by a massless cord" a. Calculate the tension in the upper cord when the two buckets are pulled upward with an acceleration of 1.54m/s^2 by the upper cord. T1 = upper cord's tension...