consider the photoelectric effect experiment. in one experiment yellow light shines on a piece of potassium metal. a current is measured meaning electrons are ejected from the potassium metal. what would happen if the intensity of the yellow light increased

Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block