Please help me idk what I’m doing
...
Answers: 1
Chemistry, 21.06.2019 16:30
Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)
Answers: 3
Chemistry, 21.06.2019 20:30
There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?
Answers: 1
Chemistry, 22.06.2019 05:30
Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.
Answers: 1
Chemistry, 22.06.2019 06:00
The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.
Answers: 1
Computers and Technology, 06.04.2021 14:00
Mathematics, 06.04.2021 14:00
Mathematics, 06.04.2021 14:00
Mathematics, 06.04.2021 14:00
Chemistry, 06.04.2021 14:00
Mathematics, 06.04.2021 14:00
Mathematics, 06.04.2021 14:00
Social Studies, 06.04.2021 14:00
English, 06.04.2021 14:00
Computers and Technology, 06.04.2021 14:00
English, 06.04.2021 14:00