Benny wonders why when he presses his finger against a map nothing happens to the map. However, if he presses a thumbtack into the map using
the same force, the tack will probably poke a hole in the map. This is what his friends said was the reason:
Heather: I think it’s because the tack is made of metal.
Steve: I think it’s because your finger has more surface area.
Ashia: I think it’s because your finger is warm.
With whom do you agree most?
Explain

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes.which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature.sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by