Recent content by cmcd

Thanks for the quick reply; I don't think we did get notes for it, it's a question from a past exam taken to get a scholarship so they're a little tougher than the course content. The expansion for exp^x is the bit that confuses me the most. Thanks though

Yeah. Can you take a look at this for me, I think it has been abandoned. https://www.physicsforums.com/threads/gravity-of-new-planet.774667/#post-4878577

That's great thanks! I got the reaction force = 50g/3 for part (a)

Can the system be seen as a set of two x two see-saw balancing acts, where the reaction force = 0 where they meet? N must be equal to 50g Newtons right? Can the reaction forces = 0?

Homework Statement A team of Mexican acrobats are developing a new act. Four see-saws are arranged in a square so that the ends of the see-saws overlap as shown in the plan view below. Each member of the team has a mass of exactly 50kg. (a) Calculate the contact forces between the see-saws...

The full question is: A space-probe from Earth has been sent out of Earth's solar system and eventually reahes a neighbouring solar system. The space - probe has discovered a planet with a gas atmosphere in this solar system and approches for landing. During the landing process the space probe...

\rho(h)=\rho_0\exp^-\frac{\rho_0g_ph}{p_0}

\rho_0

Yeah, that's all the question gave though. Should have said Boltzmann constant soz. If you can't help don't sweat

And subbed V(h) = (m_ave ) / rho(h)

Maybe something to do with Kb. I've tried using pv=N.K_b . T. I think it has something to do with the fact that the taylor/maclaurin series for e^x is given.

The question doesn't give one, just said non zero value at 60km

Homework Statement A space-probe discovers a planet with a gas atmosphere, detects a non-zero value for speed of sound 60km relative to the surface of the planet. It measures a surface temperature of -5 degrees C and an average atmospheric molecular mass of 38 x 10 ^ -27kg. Find G_p the...

*.*.

Homework Statement A parcel sits on a seat angled θ to the horizontal. The car is traveling along a local radius of curvature of 80m and is traveling 20m/s at the dip. For what value of theta will the parcel not slip? Will someone check that my force diagram is correct? Thanks, cmcd...