Which of these experiments would make use of quantitative data a. a study on the effects of sunlight on the growth rate of plants b. a study of different surfaces to compare ability to repel water c. a study on the change in freezing point of water when salt is added d. a study of different shapes to compare rolling friction values

Why there is no inductive reactance in dc circuits

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.