Pojazd porusza Się z predkością 30km/h przez 1h, prze kolejne 3h z predkoscią 60km/h. Oblicz średnia prędkość

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

The energy equivalent of the rest mass of an electron is

Which component of the earth’s atmosphere is decreased due to photosynthesis?