Mrs. Evans, a 52 kg hiker, climbs to the summit of Mount Mitchell in western North Carolina. During one 2.0 hr (change to seconds!) hike, her vertical height increases 540m. Determine the power generated to increase the gravitational potential energy of the system.

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.