Subliniază răspunsul corect: În acelaşi timp un corp se poate / nu se poate afla în mai multe tipuri de echilibru. O minge va tinde să ocupe poziţii cât mai joase / înalte pe o suprafaţă de sprijin. La o curbă spre stânga şoselele sunt înclinate astfel încât, când plouă, apa se scurge spre exteriorul / interiorul curbei. Acrobaţii folosesc o bară lungă şi subţire (un balansier) / un toiag pentru a-şi menţine echilibrul când merg pe sârmă.

Which terms describe the purpose of antennas on devices that use radio waves? transmit and receivemodify and amplifyamplify and receivemodify and transmit

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?

What is the major limitation to the light microscope?