You leave your 75 w portable color tv on for 6 hours each day and you do not pay attention to the cost of electricity. if the dorm (or your parents) charged you for your electricity use and the cost was $0.3 /kw · h, what would be your monthly (30 day) bill? answer in units of dollars.

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

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

The system is released from rest with the cable taut, and the homogeneous cylinder does not slip on the rough incline. determine the angular acceleration of the cylinder and the minimum coeffi cient s of friction for which the cylinder will not slip.