For Questions 4-8, calculate (a) the Mechanical Advantage MA, (b) the effort required to lift the load, and (c) the quantity of rope pulled to raise the load the given distance.

a
Effort
E
b
С
490 N lifted 3 inches
5.
4 meters
b
1960 N
lifted 1
meter
b
Effort
150 lbs
lifed 12 ft

Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

A( developed during the process of technology design