I really need this done please help me. What is the specific heat of a 400 g sample at 63°C if it is inserted into a calorimeter containing 750 mL of water (C = 4,186 J /kg°C) at 23°C, and eventually brought to an equilibrium of 47°C? Show all work and units for full credit.

Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?

Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.