Tuesday
September 16, 2014

Posts by JU


Total # Posts: 15

Physics
Help!
May 8, 2013

Physics
Thanks, please answer ? a)Express b in term of, if necessary, R , L , C ?
May 1, 2013

physics
Help!
April 12, 2013

physics
Please help!
April 9, 2013

science
im trying to figure out what would happen if 4500 calories of heat are added to a 50 gram ice cube at -10 degrees celsius
January 3, 2012

Math
If sinx= 5/13, and x is a positive acute angle, find sin (x + 3pi/2)
May 7, 2011

college physics helpasap
ok thank you i got it. still baffled on how the distace is 450 but i multiplyed 90*450*cos35 w=f*d*costheta and 33175 was the answer thank you
November 20, 2010

college physics helpasap
how did you get 450m? because the distance wasnt given in this problem
November 20, 2010

college physics helpasap
The water skier in the figure is at an angle of 35degree with respect to the center line of the boat, and is being pulled at a constant speed of 15m/s . 1)If the tension in the tow rope is 90.0N, how much work does the rope do on the skier in 30.0s ? 2)How much work does the ...
November 20, 2010

physics
...answer** then for kinetic friction, i am clueless how to find the acceleration since there is no speed given in the equation. i know there is somehting i am missing or that i am looking at this question in the wrong way. the varible i think are 1.75kg for the weight of the ...
November 11, 2010

physics
i tried it many different ways. but basically i used fk=ukN . forexample for static friction (uk) the acceleration= o so unN=ma us(1.45)=1.75kg(0) us=1.45 and i got the wrong
November 11, 2010

physics
I keep geting this question wrong and cant figure out what i am doing wrong. Help please. When you push a 1.75- book resting on a tabletop, it takes 2.23 to start the book sliding. Once it is sliding, however, it takes only 1.45 to keep the book moving with constant speed. ...
November 11, 2010

pysics
A hot-air balloon is descending at a rate of 1.5 when a passenger drops a camera.If the camera is 41 above the ground when it is dropped, how long does it take for the camera to reach the ground?
September 24, 2010

physics
A hot-air balloon is descending at a rate of 1.5 when a passenger drops a camera.If the camera is 41 above the ground when it is dropped, how long does it take for the camera to reach the ground?
September 16, 2010

Environmental science
What are some examples of innovations that help reduce, cope with, or profit from global warming?
February 5, 2010

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