The specific heat capacity of silver is 0.06 cal/g°C. How much energy is needed to flow into a 5-gram sample to change its temperature from 10°C to 11°C?

The density of gold is 19.3g/cm3. what is the volume of a 13 g gold nugget? ( density: d= m/v)

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt