Answer:
there are two planets that rotate from East to West which are Uranus and venus
The value of m given that the temperature of the mixture is 70°C is : 0.875 Kg
<h3>Determine the value of m </h3>
Applying the principle of energy conservation
Heat lost by the hot body = heat absorbed by the cold water + calorimeter
= m * 4200 * ( 100 - 70 ) = 0.50 * 4200 * ( 70 -20 ) + 105 * ( 70 -20 )
= m * 126000 = 110250
therefore ;
m = 110250 / 126000
= 0.875 kg
Hence we can conclude that The value of m given that the temperature of the mixture is 70°C is : 0.875 Kg
Learn more about specific heat capacity : brainly.com/question/10541586
The area enclosed by the wire is

By using Faraday-Neumann-Lenz law, we can find the emf induced in the circuit, whose magnitude is equal to the variation of magnetic flux on the wire:

And then, by using Ohm's law, we can find the induced current: