Recent content by connie5828

Homework Statement A square loop of side .45 m is placed in a region where there is a magnetic field of strength 8T directed perpendicularly out of the plane of the loop. If the magnetic field is increased to 14 T in .03 seconds, calculate the average emf induced in the loop Homework...

Let me start here: M1=21 vlix= 27* cos 0o m2=12 v2ix=0*cos0 vlfx= 11*cos20 v2fx=?? Are these correct before I go further? Thanks so much for the help.

Homework Statement An object of mass 21 kg going to the right with a speed of 27 m ⁄ s collides with a(n) 12 kg object at rest. After collision the 21 kg object moves with a speed of 11 m ⁄ s making an angle of 20 degree with the horizontal-right. Calculate the x-component of the...

ok, reading that was helpful. To get the 2nd speed would this be the equation? 0(10-15) + 2*15*3/10+15 I put 0 as the 10K object is at rest. Is that correct?

KE=mv2/2 the info my professor gave showed no use of that formula though. I am now officially confused :)thanks for the help.

vli-V2i=-(Vlf-V2f) is that correct? Do you have to get the first one to get the speed of the 2nd one? do you have to do the first equation I posted in order to do the 2nd equation?

Homework Statement An object of mass 15kg going to the right with a speed of 3 m/s collisdes with a 10kg object at rest. if the collision is ocmpletely elastic, calculate the speed of the 10kg object after collision Homework Equations m1vli +m2v2i=m1vlf+m2v2f The Attempt at a...

totally got it. THANK YOU! Taking anatomy and Physics and anatomy I rock at Physic I learning with the help of people who have amazing science brains. Thanks!

looks like my first reply may not have posted. thanks for your help. Please correct what I am not understanding KE=MV2/2 so equation would be 70=82/2 70=64/2 (is this correct??) 70/32=2.188 P=MV P=8*2.188 the problem is I am using the practice equation to try to figure this out and it...

Homework Statement Calculate the momentum of an object of mass 8 kg if its kinetic energy is 70 J Homework Equations I am not sure what the equation is. Every one I have tried hasn't worked The Attempt at a Solution KE=MV squared?

Homework Statement An object of mass 100kg is hanging from a ceiling by means of 2 strings. The 1st string (t1) makes an angle of 55 degree with the horizontal-right. The scond string 9T-2) makes an angle of 25 degree with horizontal left. Calculate tension in the first string (T1)...