B Step 1. Mix 10 tsp. white sugar into 100 ml water and stir until most or all of the sugar is no longer visible.
There can be someone who think answer should be B but temperature isn' proportional with heat. The formula is Q=m.c.t , so it isn't definetly temperature. So answer should be D. Because A and C connect with force etc.
Answer:
Explanation:
mass of the alloy = 35.2 g
temperature t of the alloy = 93° C
heat loss by alloy = mc ( t₁ - t₂) where t₁ = 93 and t₂ = 31.1° C
heat loss by alloy = 2178.88 c where c is the specific heat capacity of the alloy
heat gained by water = m cw ( t₂ - t₁ ) where t₁ of water = 22° C and t₂ of water = 31.1° C
heat gained by water = 8338.294
heat gained = heat loss
2171.84 c = 8338.294
c specific heat capacity of the alloy = 8338.294 / 2178.88 = 3.83 J/g.K
Answer:
Friction
Explanation:
<em>Friction causes heat because it forces particles to move at a quicker speed and gain more energy.</em>
If there is no current running through a good conductor, it's always because
there is no potential difference between its ends, so the electrons in it have
no incentive to go anywhere. If you want a current to flow, just create a potential
difference (a voltage) between the ends of the conductor. You can do that with
a generator, a battery, a solar cell, or some pieces of metal stuck into a moist
potato. As soon as you do that, those electrons wake up, and they all start trying
to fly away from the negative end of the conductor, toward the positive end.
