What is the recommended daily dosage of flouride for a child over three years of age living in an area where drinking water is free fluoride

Whats evidence do scientists use to support the theory of plate tectonics

What is the weight, on Earth, of a book with a mass of 1.5 kg? 1.5 N 6.5N 11.3 N. 14.7N

Based on illustrations of magnetic field lines, where could an object be placed so it would not experience a magnetic force?

The momentum of an isolated system is conserved A) only in inelastic collisions. B) only in elastic collisions. C) in both elastic and inelastic collisions

Movie from left to right across a row of the periodic table which of the following values increases by exactly One form Element to element Isotope number Atomic number Atomic mass number Mass number

Velocity is: а - speed and direction. b - distance divided by time. c - always the same as speed. distance multiplied by time. d - distance multiplied by time

The gauge pressure in each of the four tires of an automobile is 230 kpa. if each tire has a "footprint" of 180 cm2 (area touching the ground), determine the mass of the car.

A bus travels 20 KM and 30 minutes what is average speed of the bus

What is the total number of atoms in the following formula? CaBr2

A lifeguard on a beach observes that waves have a speed of 7 m/s and a distance of 4.6m between wave crests. what is the period of the wave motion?