A15.0-g marble is dropped from rest on the floor 1.44 m below. (a) if the marble bounces straight upward to a height of 0.640 m, what is the magnitude and direction of the impulse delivered to the marble by the floor? (b) if the marble had bounced to a greater height, would the impulse delivered to it have been greater or less than the impulse found in part (a)? explain.

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

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.