Answer: Sam provides the biggest power
Explanation: <u>Power</u> is defined, in Physics, as the rate of work done. <u>Work</u> is energy transferred to an object due to the force causing the displacement of the object.
So, to determine Power:
For Sam:
P =
P = 50 Watts
The unit for Power is [P] = J/s = Watt
For Gary:
P =
P = 40 Watts
Comparing power of Sam and Gary, we can conclude that Sam provides the biggest power of 50 Watts.
Answer:
The values are:
Explanation:
the attached figure shows the diagram. The equation is the following:
(eq. 1)
Voltage across the 40 Ω is equal:
(eq. 2)
Applying the Kirchhoff´s voltage law:
(eq. 3)
Equation 1 and 2:
(eq. 4)
Substituting in eq. 3
Substituting in eq. 4
Substituting in eq. 2:
Low-level nuclear waste can be disposed of in a landfill.
The substances that will be good conductors of electricity are NaCI(s) and NaCi(l)