Physics, 22.09.2021 02:10 tomboy8899
A 200 g piece of iron is heated to 100°C. It is then dropped into water to bring its temperature down to 22°C. What is the amount of heat transferred to water? (Ciron-0.444J/g °C)
A. 1.9 kj
B. 6.9 kj
C. 8.9 kj
D. 10.9 kj
Answers: 1
Physics, 21.06.2019 23:10
Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net
Answers: 1
Physics, 22.06.2019 16:30
The ph is the a.independent variable b.the dependent variable c.control group
Answers: 1
Physics, 22.06.2019 19:30
Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere
Answers: 2
Physics, 22.06.2019 19:40
Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.
Answers: 3
A 200 g piece of iron is heated to 100°C. It is then dropped into water to bring its temperature dow...
Geography, 20.04.2020 03:37
Mathematics, 20.04.2020 03:40
Mathematics, 20.04.2020 03:40
Health, 20.04.2020 03:41
Mathematics, 20.04.2020 03:43
History, 20.04.2020 03:54
English, 20.04.2020 03:54
Mathematics, 20.04.2020 03:55
History, 20.04.2020 03:55
Arts, 20.04.2020 03:55