Heat flow among the water and its outside surroundings

Reference no: EM13661488

When you take a bath, how many kilograms of hot water (51°C) should you mix with cold water (12°C) so that the temperature of the bath is36°C? The total mass of water (hot plus cold) is 189 kg. Ignore any heat flow among the water and its outside surroundings.

Reference no: EM13661488

Questions Cloud

Kinetic friction among the wheel and the wet rag : A potter's wheel having a radius 0.45m and a moment of inertia 10.2kg·m2 is rotating freely at 55 rev/min. The potter can stop the wheel in4.0 s with pressing a wet rag against the rim and exerting a radically inward force of 71 N. Discover the effec..

What multiple of sm is the amplitude of the net wave : The figure below shows four isotropic point sources of sound that are uniformly spaced on an x axis. The sources emit sound at the same wavelength λ and same amplitudes, and they emit in phase. A point P is shown on the x axis. Suppose that as the so..

Compute the total current supplied to the circuit : A lamp (R = 152 Ω), an electric heater(R = 26 Ω), and a fan (R =52 Ω) are connected in parallel across a 120 V line. Compute the current in the lamp. What is the voltage across the fan? Compute the total current supplied to the circuit.

Discover the speed of the wagon after the rock is thrown : A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 99 kg. The mass of the rock is 0.32 kg.

Heat flow among the water and its outside surroundings : When you take a bath, how many kilograms of hot water (51°C) should you mix with cold water (12°C) so that the temperature of the bath is36°C? The total mass of water (hot plus cold) is 189 kg. Ignore any heat flow among the water and its outside sur..

An aluminium baseball bat has a length : An aluminium baseball bat has a length of 0.87 m at a temperature of 21°C. When the temperature of the bat is raised, the bat lengthens by 0.00016 m. Decide the final temperature of the bat.

What is the minimum thickness t of oil slick at that spot : A scientist notices that an oil slick floating on water when viewed from above has many dissimilar rainbow colours reflecting off the surface. She aims a spectrometer at a particular spot and measures the wavelength to be 750 {\rm nm} (in air). The i..

Compute the length of the cylinder outside the water : A metal cylinder of height h = 0.8m and cross-section S = 0.02m^2, is floating upright in water. The density of the metal cylinder is p metal = 550kg/m^3, and the density of water is p water = 1000 kg/m^3. Compute the length of the cylinder outside t..

The equation given for klost simplifies : The equation given for Klost simplifies to m/(m+M) if I am not mistaken. This solution also gives 2 dissimilar values for V final. If the second given value for V final is substituted in you get the answer given however there is no information about ..

User Account

All Pages