True or false

. when the only force acting on a falling object is →air resistances←, the object is said to be in free fall.

. the property of matter that resists a change in motion is called →inertia←

. according to newton's second law of motion, →weight← depends on an object's mass and the net force acting on the object.

. friction depends on the types of surface involve and how →hard← the surface push together.

. mass and →air resistance← affect the gravitational attraction between objects.

Calculate the ratio of h+ ions to oh– ions at a ph = 7. 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 = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

What three things determine the shape and size of a puddle when water is poured out onto a surface

Avariable that is not being directly tested during an experiment should be