Physical Science
posted by Jinja .
How do you find the mass if they give you the joules and the velocity? Please help me! I'm really confused...

I guess the energy is all kinetic here?
(1/2) m v^2 = Energy in JOules
so
m = 2*joules of energy / v^2
Respond to this Question
Similar Questions

physics
A steel ball has a mass of 4.0kg and rolls along a smooth, level surface at 62m/s. A) Find its kinetic energy(i got this and its 7688 joules) B)? 
Physics  I'm really, really lost
A plane tries to head away from an airport at 500km/h[N], but finds that its true velocity is 450km/h[N35degreesE] due to headwinds. What is the velocity of the wind? 
Career
But please just give me atleast some very good suggestion!! I am really confused !! Please give me some topics Thank Yoou !! 
Physical Science
Hi... well anyways so I am in 7th grade but I'm taking 8th grade science...I think...I know for sure that I am in Accelerated 7th grade science so if that helps at all, there you go:) Back to the subject I'm really confused with acceleration … 
physical science
17. In the Mass in Motion lab, you rolled a ball down a ramp to see how far it moved a cup. What did this experiment demonstrate? 
Physical Science
How do you get the velocity of a roller coaster when you are only given 250.0kg and 2.000x10^4 Joules 
Physics
Estimate the total binding energy for copper. 550 MeV Estimate the energy, in joules, needed to break a 3.0g copper penny into its constituent nucleons. E= in Joules Please help me out I got 1st part I need the Energy in joules am … 
science
Calculate the kinetic energy in joules of a body of mass 30kg at a velocity of 3ms1 
Physical Science
The potential energy of an apple is 6.00 joules. The apple is 3.00meters high. What is the mass of the apple? 
Science
Still very confused 5. Darth Vader unleashed the power of the DARK SIDE (1225 watts) on the unsuspecting Jedi.If he did 727 joules of work how much time did it take?