Calculate the electric field strength if the potential across charged plates is 12 volts and their separation is 0.4 cm. 5v/m 0.05 v/m 30 v/m 3,000 v/m calculate the force a test charge of 0.001 coulomb would experience in the field across charged plates of 12 volts and separation of 0.4 cm. 5 times 10-^3 n 5 times 10-^5 n 5 times 10 -^2n 3

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

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?

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain