Physics, 17.05.2021 18:40 kelseydavid69
A Nerf Gun fires a dart that has a mass of 0.005 kg straight up in the air.
If the spring mechanism stores 1.3 J of energy, what is the maximum
height the dart could go, assuming all of the stored energy becomes
gravitational potential energy and there is no loss of energy to air
resistance?
Answers: 2
Physics, 21.06.2019 23:30
The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of
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Physics, 22.06.2019 01:30
Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor
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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 08:00
Which notation is used to represent an alpha particle? a. b. c. d.
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A Nerf Gun fires a dart that has a mass of 0.005 kg straight up in the air.
If the spring mechanism...
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