Mary is standing at a place such that she makes an angle of 42° to the right of the normal of a mirror. Where should Mary's mom stand so that she can best see Mary's reflection in the mirror?

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

True or false: the revolution of the earth creates day and night as it rotates around the sun

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v