What is the equivalent resistance of the circuit? 60.0Ω
120.0V
20.0Ω
Ο Α. 20.0Ω
Ο Β. 80.0Ω
C. 40.0Ω
D. 200.0Ω

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z