The next two questions refer to this situation: a rectangular loop with sides of length a= 1.00 cm and b= 2.70 cm is placed near a wire that carries a current that varies as a function of time:
i(t)=3.62+1.49t2
where the current is in amperes and the time is in seconds. the distance from the straight wire to the closest side of the loop is d= 0.460 centimeters.
a-what is the magnetic flux through the loop at time t= 2.90 seconds? (define positive flux into the page.)b-what is the induced e. m.f. in the loop at time t= 2.90 seconds? (note that positive emf is clockwise.)

Comedians like to joke that the reason we haven’t been visited by intelligent life from elsewhere in the universe is that aliens have been monitoring earth’s broadcasts of intellectually embarrassing tv programs, like gilligan’s island, fear factor, the jersey shore, and the jerry springer showand so consider us far too primitive to merit a visit. let’s check the assertion that aliens could have been receiving them. tv programs are broadcast at a frequency of about 100mhz with about 100kw of total power in 30frames per second, which emanatesroughly uniformly in all directions. assume that interstellar space transmits these broadcasts without attenuation. no matter how smart they are, aliens would require at least one photon per frame to interpret our signals. findthe number of photons per unit time per unit area reaching a receiver on a possible planet in the nearest star system, which is about 4 light-years away (a light-year is the distance light travels in a year). if aliens aimed a receiver or detector directly at earth, how big (in diameter) would it have to be to receive a photon per frame

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?

Find the mass by adding the numbers from the three sliders