December 1, 2015

Posts by mohamad

Total # Posts: 10

A skateboard wheel has a radius of 2.08 inches and is turning at a rate of 945 rpm. a. what is the angular speed in radians per second? in degrees per second? b. how fast is the skateboard traveling (in miles per hour)?
September 26, 2015

An air plane is flying due east relative to still air at a speed of 320 km/h. There is a 65 km/h wind blowing to ward the north, as measured by an observer on the ground. What is the velocity of the plane measured by the ground observer?
September 14, 2015

first:- X=X1+0.5(Vx+V1x)t 140=0+0.5(20)t t=14s second:- a=v/t=20/14=1.43m/s2 F=m*a=1000*1.43=1430N to the south
November 1, 2011

i dont know the answer
March 25, 2011

October 5, 2010

October 5, 2010

The hydrogen-ion concentration of a 0.25 M solution of HCN (Ka = 4.9 ´ 10-10) is I keep getting 1.1 *10^-5
June 20, 2010

pls explain your answer Which of the following solutions would be expected to be the best conductor of an electric current at room temperature? a. 1.0 M CH3COOH b. 0.10 M CH3COOH c. 0.10 M CO(NH2)2 d. 0.10 M Na2SO4 e. 0.10 M NaCl thanks
June 19, 2010

Health Care
plz i need the answer
January 20, 2010

information literacy
There are many varieties of libraraies information collections that have been built to serve the needs of many different people.
March 6, 2007

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