the table shows the solubility of two substances in water at 20 °c.
solubility of substances
mass
(kg) solubility of sodium chloride
(g per 100 g of water) solubility of lead nitrate
(g per 100 g of water)
100 l k
200 36 54
part 1: what will be the values of l and k for 100 kg of each substance?
part 2: explain your answer for part 1.

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 ?

What is the coefficient of kinetic friction μk between the block and the tabletop?

Both independent and dependent clauses