Homework Statement
Find the actual equilibrium temperature if Tf=0, how much of the water froze ?
helllllllllllllllllllllllllllllllllllllllllllllp me if you can
Homework Equations
The Attempt at a Solution
Think you FedEx
5m/s west to 10m/s east = 15 m/s east here my problem
From where I can get 15? why does the book add them?even I know that if I want to know finall velocity v2-v1 but here v2+v1 why ?
Homework Statement
Find Size and direction of the change in velocity:
a)5m/s west to 10 m/s west
b)10m/s west to 5m/s west
c)5m/s west to 10m/s east
Homework Equations
The Attempt at a Solution
a)10-5= 5 west
b)5-10=-5 because there isn't size wihe negitve the...
Thinks Learningphysics to your help
I used this v^2/r and the answer is 2.8 m/s after that I used 2rr and the answar is 5.0/1 rev that means 1 rev/5.0
aftet that I can't do any thing because I don't have the d !
??
a=v2/r this is the first equation that I used but I don't kow what is the secend will be ?
what does the revoluition mean ? what does the equation we need to use ?
pleace help me I me international student fot that I have a lot of diffeculties
Homework Statement
Aboy whirls aball on a string in ahorizontal circle of radius 0.8m. How many revolutions per minute must the ball make if the magnitude of its centriptal acceleration is to be the same as the free-fall acceleration due to gravity g?
Homework Equations
The...