Physics, 31.07.2019 22:50 milhai0627a
An asteroid with a mass of 5.0 x 105 kg collides with the earth and slides horizontally along the ground without bouncing (not actually possible but just pretend). the velocity of the asteroid before impact is 1.1 x 104 m/s and the coefficient of kinetic friction between the asteroid and the earth is 1.80. how much energy is lost due to friction between the asteroid and the earth after the asteroid has come to rest?
Answers: 1
Physics, 22.06.2019 04:00
Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j
Answers: 2
Physics, 22.06.2019 06:20
Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?
Answers: 1
Physics, 22.06.2019 06:30
The mini-refrigerator fire was most likely caused by what type of wiring?
Answers: 2
Physics, 22.06.2019 07:00
Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.
Answers: 3
An asteroid with a mass of 5.0 x 105 kg collides with the earth and slides horizontally along the gr...
Mathematics, 11.03.2021 21:30
Mathematics, 11.03.2021 21:30
Mathematics, 11.03.2021 21:30
Biology, 11.03.2021 21:30
Advanced Placement (AP), 11.03.2021 21:30
Mathematics, 11.03.2021 21:30
Computers and Technology, 11.03.2021 21:30
Advanced Placement (AP), 11.03.2021 21:30
History, 11.03.2021 21:30
Mathematics, 11.03.2021 21:30
Mathematics, 11.03.2021 21:30
History, 11.03.2021 21:30
Mathematics, 11.03.2021 21:30
Social Studies, 11.03.2021 21:30