Recent content by felipenavarro

your right,! i didnt thought about a low speed.

with conservation of momentum it is answer e. but isn't the reasoning i said before correct?

Homework Statement a small ball of mass "m" is traveling with an initial velocity v in the positive x direction. it collides with a larger vall of mass M that is initially at rest. after the collision, the smaller ball is at rest. What is the final velocity, V, of the larger ball? options...

now i got it, great explenation! thanks

sorry what is sy(changes in y?) , and yes that is where i am having trouble. i end up with cosines and sines and can't unite them or cancel them or anithyng

Homework Statement i kick a ball with an initial velocity of 18m/s. there is a wall at 8m that has a height of 1.5 meters. whith what angle should i kick the ball so that it bearly passes the wall? Homework Equations first equation: hf= 1/2gt^2+vit+hi second equation: V=Δx/t The...

yea haha, thanks anyway

oh, it makes sense now, thanks!

Homework Statement Find the binding energy per nucleon of 238 92 U in MeV Homework Equations ΔM= ideal mass - atomic mass Ebind= ΔM * 931.5 The Attempt at a Solution first i found the diference in mass from ideal weight and atomich weight which is 1.98499. then i multiplied...

ah! got to read with more attention! thanks !

oh! i don't know why it changed to ma the original problem uses mu i still need help with the problem! haha

well 1 million in an amp and 100,000 in .1 amps, so is this the answer for question b? that would be 5 transistors of ten in a row. but don't i have to get the same answer (as a total amplification) as in question a?

Homework Statement If a transistor circuit is used to amplify a 2.5 mA signal to at least 0.1 A, what must be the minimum gain of the transistor circuit? b. Assume the amplifier consists of a number of transistors in series, each with a gain of 10. How many transistors are needed in...

oh! its clear now, thanks!

Hi can someone explain to me how the higgs field creates gravity, or how is it related to it? I mean, if the higgs field is responsible for mass, then it should be somewhat responsible for gravity. Right?