5. When a shiny chunk of metal with a mass of 1.32 kg absorbs 3250 J of energy, the temperature of the metal
increases from 273 K to 292 K. Is this metal likely to be sil-
ver, lead, or aluminum?

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

If element x has 99 protons how many electrons does it have

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_