Recent Homework Questions About Physical Fitness
How would you know if a model is a good model?
Sunday, October 13, 2013 at 10:21pm
Two mountain climbers are working their way up a glacier when one falls into a crevasse. The icy slope can be considered frictionless. Sue's weight is pulling Paul up the 45* slope. If Sue's mass is 66kg and if she falls 2m in 10s starting from rest, find the tension ...
Sunday, October 13, 2013 at 10:18pm
A bicycle and its rider together has a mass of 95 kg. What power output of the rider is required to maintain a constant speed of 4.8 m/s (about 10.7 mph) up a 5.0% grade (a road that rises 5.0 m for every 100 m along the pavement)? Assume that frictional losses of energy are ...
Saturday, October 12, 2013 at 11:12pm
The Earth orbits the Sun due to gravitational acceleration, so yes.
Saturday, October 12, 2013 at 10:46pm
ignore this question I got it :)
Saturday, October 12, 2013 at 10:16pm
Ignore this question I got it :)
Saturday, October 12, 2013 at 10:14pm
17. Based on the chemical equation, the reaction is endothermic. Increasing the temperature will favor the forward (left to right) reaction. Or you may think of the heat as one of the reactants. If you increase heat, then the amount of products will also increase. Otherwise, ...
Friday, October 11, 2013 at 11:10pm
it should be "b"
Friday, October 11, 2013 at 7:11pm
pure maths, life science, physical science, geogra
See Related Questions below.
Thursday, October 10, 2013 at 1:21am
Vf=Vi+gt Vf= final velocity (what we're solving for) Vi= initial velocity (in our problem, initial velocity is zero because the rock starts from rest) g=gravitational acceleration (9.8m/s/s) t= time (in our case, 3.5s) Vf= 0m/s + (9.8m/s/s)(3.5s) Vf= 34.3m/s downward (you ...
Tuesday, October 8, 2013 at 9:47am