Physics, 21.08.2019 01:10 mehnamejet92
Aflat, circular, steel loop of radius 75 cm is at rest in a uniform magnetic field. the field is perpendicular to the plane of the loop. the field is changing with time, according to an exponential function: b(t)=(1.4t) e- (0.057sec-1)t. when is the induced emf equal to 5% of its initial value? 170 msec 245 msec 52.6 msec o 39.5 msec
Answers: 1
Physics, 21.06.2019 16:30
Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.
Answers: 1
Physics, 22.06.2019 02:10
Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
Answers: 3
Physics, 22.06.2019 05:30
Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon
Answers: 2
Aflat, circular, steel loop of radius 75 cm is at rest in a uniform magnetic field. the field is per...
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