Which of the following statements about elasticity of demand is false? a. a consumer with highly elastic demand for a good is very responsive to price changes. b. demand for a good can be highly elastic at one price and inelastic at a different price. c. if the elasticity of demand for a good at a certain price is equal to or less than one, demand is elastic. d. to calculate elasticity, divide the percentage change in the demand of a good by the percentage change in its price.

An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

When using the scientist method, which step comes last?