Chemistry, 27.09.2019 03:30 brandonlatortu6882
Astone of mass 0.55 kilograms is released and falls to the ground. measurements show that the stone has a kinetic energy of 9.8 joules at the point of impact with the ground. what is the stone's velocity when it hits the ground?
a.6.3 meters/seconds
b.7.2 meters/seconds
c.8.1 meters/seconds
d.9.3 meters/seconds
Answers: 2
Chemistry, 22.06.2019 00:00
Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
Answers: 1
Chemistry, 22.06.2019 10:30
Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic
Answers: 1
Chemistry, 22.06.2019 12:40
When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 Β°c to 31.53 Β°c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign
Answers: 2
Chemistry, 22.06.2019 17:00
The arrangement of particles is most ordered in a sample of
Answers: 1
Astone of mass 0.55 kilograms is released and falls to the ground. measurements show that the stone...
Computers and Technology, 11.10.2021 01:00
Mathematics, 11.10.2021 01:00
Mathematics, 11.10.2021 01:00
English, 11.10.2021 01:00
Mathematics, 11.10.2021 01:00
English, 11.10.2021 01:00
English, 11.10.2021 01:00
Mathematics, 11.10.2021 01:00
Social Studies, 11.10.2021 01:00
Biology, 11.10.2021 01:00
Social Studies, 11.10.2021 01:00
Business, 11.10.2021 01:00
Mathematics, 11.10.2021 01:00