At a certain point between earth and the moon, the net gravitational force exerted on an object by earth and the moon is zero. the earth-moon centre-to-centre seperation is 3.84 x 10^5 km. the mass of the moon is 1.2% the mass of earth . a) where is this point located? are there any other such points? . b) what is the physical meaning of the root of the quadratic equation whose value exceeds the earth-moon distance?

What are atoms of the same element with varying number of neutrons

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

Calculate the velocity of a car traveling in a straight path due east with a distance of 16 meters in 2 seconds. question 1 options: a)32 m/s b)32 m/s e c) 8 m/s e d) 8 m/s