D) convection! here is the reason why :the definition of convection is <span>the concerted, collective movement of groups or aggregates of molecules within fluids (e.g., liquids, gases) and rheids, through advection or through diffusion or as a combination of both of them. So becuase the medal is more convective, this causes it to be heated faster!
Note; this is why we use glass heating plate, so they dont get hot and burn people</span>
Answer:
16 fold increase.
Explanation:
As kinetic energy is a function of velocity squared, if the velocity quadruples, kinetic energy increases by a factor of 4² = 16
You need to <u>do</u> it in less than an hour because it is <u>due</u> soon.
Ok 3 A9 ok so that is right
The time needed to evaporate all the water in the kettle is 1.13 x 10³s.
<h3>What is Power?</h3>
The power is defined as the the ratio of amount of energy produced per unit time.
P =E/t
Energy is in the form of heat gained to evaporate all water in kettle.
E = Q =mL
So, P = mL/t
Substitute mass of water m = 0.5kg, latent heat of vaporization of wate L = 2.26 x 10⁶ J/kg, power P= 10³ W, we have
10³ = (0.5 x 2.26 x 10⁶) /t
t = 1.13 x 10³s
Thus, the time needed to evaporate all the water is 1.13 x 10³s.
Learn more about power.
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