Test Name: Physical Science MOTION Common Assessment 2020-2021 Test ID: 1994732
Date: 12/22/2020
Section 1
1. What does the slope of a position vs. time graph reveal about an object's motion?
A. the distance the object has traveled
B. the velocity of the object
C. the acceleration of the object
D. the net force acting on the object
2. A velocity vs. time graph is shown below.

If a || b and e || f, what is the value of y ?

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.