A small immersion heater is rated at 285 W . The specific heat of water is 4186 J/kg⋅C∘. Estimate how long it will take to heat a cup of soup (assume this is 250 mL of water) from 20 ∘C to 64 ∘C. Ignore the heat loss to the surrounding environment.

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

What is similar between metals and suspensions