Physics, 18.06.2020 00:57 kitt90335

Find the value of T1 if 1 = 30°, 2 = 60°, and the weight of the object is 139.3 newtons. A. 69.58 newtons

B. 45.05 newtons

C. 25 newtons

D. 98.26 newtons

Find the value of T1 if 1 = 30°, 2 = 60°, and the weight of the object is 139.3 newtons.

A. 69.58

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 04:20

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.

Answers: 3

Answer

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

Answer

Physics, 22.06.2019 17:00

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Answers: 3

Answer

Physics, 22.06.2019 17:30

Convection currents are caused by differences in what two things?

Answers: 1

Answer

You know the right answer?

Find the value of T1 if 1 = 30°, 2 = 60°, and the weight of the object is 139.3 newtons. A. 69.58 n...

Questions