11:10 OZ Quiz 4 Question 10/10 Take a look at the transit light curve on the slide titled "Planetary Transits (Eclipses)" from Lecture 7. Come up with an equation that will allow you to solve for the transiting planet's radius in terms of the star's radius, the normal flux of the star, and the minimum flux of the star during the transit. Then use this equation to solve for the radius of the planet if HD179070's radius is 1.86 times the radius of the Sun. Please give your answer in units of km.

Space-time metric ds2= -dt2+at2dx2+bt2dy2+ct2dz2 (a)how does the area of a rectangle with vertices at ( x=0, y=0, z=0 ), (1,0,0 ), ( 0,1,0 ) and (1,1,0 ) changes with time? (b) if a photon moving in the x direction starts from the origin at t=1, when does it reach x=l? (ds=0 for the trajectory of a photon.) (c) the proper time for a particle is defined by cd=ds. what is the proper time for a particle to move along the trajectory ( x(t)=t, y(t)=0, z(t)=0 ) from t=0 to 1 ? what is the condition on the parameter a so that the velocity of the particle never exceeds the speed of light ?

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l