Answer:
thermal energy
Friction does negative work and removes some of the energy the person expends and converts it to thermal energy. The net work equals the sum of the work done by each individual force. The forces acting on the package are gravity, the normal force, the force of friction, and the applied force.
Explanation:
Answer:
Explanation:
Thermal energy due to heat coming in from rubbing like rubbing your hand and it feel warm
resistance?
Electrical kettle:
P = 2 KW = 2000 W
U = 200 V
⇒ I = P/U = 2000 / 200 = 10 A
We apply the Law of Ohm:
R = U / I = 200V / 10A = 20 Ω
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Electrical heater:
P = 1 KW = 1000 W
U = 240 V
⇒ I = P/U = 1000 / 240 = 4,16 A
We apply the Law of Ohm:
R = U / I = 240V / 4,16A = 57,69 Ω
Answer:
The device with the highest resistance is the electric heater.
.
Answer:
V = 5.5 mL
Explanation:
The volume filled in the graduated cylinder is 12.7 mL
now when a stone is dropped into the cylinder then the volume of liquid is raised to final level of 18.2 mL
so as per the theory of given by Archimidies we can say that the volume of the object is exactly same as the volume displaced by the object
So here the volume displaced by the object is given as
so the volume of the object is given as