Solved

Solve the Problem Assume That the Horizontal Distance Travelled Varies Linearly with the Up

question 124

Multiple Choice

Solve the problem.
-Super Sally, a truly amazing individual, picks up a rock and throws it as hard as she can. The table below displays the relationship between the rock's horizontal distance, d (in feet) from Sally and the initial speed with which she throws. $\begin{array} { l | c c c c c } \text { Initial speed ( in ft/sec) , } \mathrm { v } & 10 & 15 & 20 & 25 & 30 \\\hline \text { Horizontal distance of the rock (in feet) , d } & 9.9 & 14.8 & 19.1 & 24.5 & 28.2\end{array}$ Assume that the horizontal distance travelled varies linearly with the speed with which the rock is thrown. Using a
Graphing utility, find the line of best fit, and estimate, rounded to two decimal places, the horizontal distance of the rock
If the initial speed is 33 ft/sec.

Comprehend the role of predictions in economic theories and models.

Distinguish between positive and normative economic statements.

Know the steps of the scientific method in economics.

Understand that economic models require simplifications due to the complexity of reality.

Definitions:

Btu

British thermal unit, a unit of measure for energy; specifically, the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

Cold Material

A term that generally refers to material at a temperature significantly lower than the ambient or desired processing temperature.

Heat Exchanger

A device used to transfer heat between two or more fluids, gases, or solids of different temperatures without mixing them.

Condenser

An electrical charge storage device also known as a capacitor. In an A/C circuit, it is a heat exchanger located in the vehicle airflow and subject to the ram air. Cooling of the refrigerant causes it to condense to a liquid state. This results in the refrigerant changing to a liquid state.