A magnetic field that is uniform in space, but whose magnitude changes with time at a constant rate, is directed along the x-axis. A conducting ring of diameter 7.0 cm and electrical resistance 1.5x10-3 Ω lies in the y-z plane. If the induced current in the ring is observed to be 2.0 A, what is the rate of change (in T/s) of the magnitude of the magnetic field?

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.

En un laboratorio, nakisha mezcla una solución de hidróxido de sodio con un indicador llamado fenolftaleína. cuando se combinan, crean una solución de color rosa. nakisha se pregunta si la mezcla de otras soluciones con fenolftaleína también creará este color rosa. ? cómo podría nakisha utilizar el proceso de investigación científica para determinar si la mezcla de otras soluciones con fenolftaleína también creará un color rosa? marque las que correspondan.