One cycle of the power dissipated by a resistor ( r = 800 ω r=800 ω) is given by p ( t ) = 60 w , 0 ≤ t < 5.0 s p(t)=60 w, 0≤t< 5.0 s p ( t ) = 25 w , 5.0 ≤ t < 10 s p(t)=25 w, 5.0≤t< 10 s this periodic signal repeats in both directions of time. what is the average power dissipated by the 800- ω ω resistor?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical