Physics, 20.09.2019 00:00, mattmore0312
What is the name of the fine soil particles deposited by rivers?
Answers: 1
Physics, 22.06.2019 03:30, sere50
The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.
Answers: 3
Physics, 23.06.2019 02:50, neshaj
Adielectric-filled parallel-plate capacitor has plate area a = 30.0 cm2 , plate separation d = 9.00 mm and dielectric constant k = 3.00. the capacitor is connected to a battery that creates a constant voltage v = 15.0 v . throughout the problem, use ϵ0 = 8.85x10-12 c2/n. m2 . find the energy u1 of the dielectric-filled capacitor.
Answers: 2
Physics, 23.06.2019 10:40, puzzledprincess8037
4.at 0 ºc, some amount of energy is required to change 1 kg of water from a solid into a liquid. if you had a 2 kg piece of ice, what effect would this have on the amount of thermal energy required to change the water from a solid to a liquid? it would require more energy to change solid water into liquid water because there are more molecules in this larger piece of ice. it would still require the same amount of energy to change solid water into liquid water because the entire piece of ice would still gain the same amount of energy in each case. it would require energy to be removed from the 2 kg piece of ice. the larger piece of ice already has more total energy than the smaller piece of ice, so energy must be removed for the ice to become liquid. it would require less energy to change solid water into liquid water because the energy would spread through the ice more quickly and the ice already has a larger total amount of energy because it is larger than a 1 kg piece of ice.
Answers: 1
Physics, 23.06.2019 14:00, hannah2757
If 0.05j work is done by stirring a cup of tea, if 150ml of tea is stirred 50 times and temperature rises to 67c° what will be the increase in entropy? a)0.007j/k b)1.1j/k
Answers: 2
What is the name of the fine soil particles deposited by rivers?...
Mathematics, 18.07.2020 20:01
Mathematics, 18.07.2020 20:01