You are camping in the breathtaking mountains if colorado. you spy an unopened diet soda can floating motionless below the surface of a lake. what is the direction and amount of force the water exerts on it? a. zerob. down, equal to the can's weightc. up, equal to the can's weightd. not enough information is given

Natural forces that can alter ecosystems include seasons and climate changes. t or f

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

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.