Recent content by Stevemotto

Oh it's the mass of the sun...

Isn't the "M" variable the mass of the planet?

I believe so from my understanding.

Question: A Gak it a type of alien that lives on a planet in another galaxy. One day a Gak decides to find out a little more about his planet. He drops a ball (it starts at rest) with a mass of 6.18 kg and notes that it takes 0.928 s to fall a distance of 8.37 m. The Gak’s planet orbits its sun...

No question on momentum :)

What diameter? I got the magnitude by multiplying the mass of the cannon ball with the speed in which it hit the wall.

yep!

We aren't given the height of the wall, 3820m is the distance from the wall to the cannon. But I was suppose to find the speed & mangnitude of the ball hitting the wall

Thanks guys, got it out!

Alright, this will be the last question I ask; so just a follow up on the next part of the question, they are us to calculate: What is the initial vertical velocity of the cannon ball? So I use V(y)=v*sin(theta) From last part v=244.3768 & theta=25.95 Yielding, V(y)= 244.3768*sin(25.95) Now...

LOL, the instructor emailed back and said I was correct. The figure for the question was wrong as it should have been 15kg, BvU you predicted correctly :D

Yep, still incorrect. I'm having some thoughts of the interaction of gravity on the velocity but that doesn't make sense and we aren't given time. Thinking of emailing the instructor..

Yes, to no avail..

Actually you would think that, but the instructor has said that the no. of sig figs don't matter and that we should put as many as possible to avoid rounding off error.

Hey guys, this question has boggled my mind not because I don't know how to approach it but apparently the method I'm using is incorrect! Question A cannonball with a mass of 150 kg is fired from a cannon. The cannonball leaves the cannon with 447.9 kJ of kinetic energy. The cannon makes an...