Explain! i don’t understand how to find the answer.

a metal bolt with a mass of 8.50 x 10^-2kg and a temperature of 85.0°c is placed in a container of water. the mass of the water is 0.150 kg, and its temperature is 25.0°c. what is the specific heat capacity of the bolt if the final temperature of the bolt and water is 28.4°c? (specific heat of water= 4186 j/kg·°c)

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.