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Steam can cause more serious burns than water at the same temperature. Here we want to examine this effect quantitatively, noting that flesh becomes badly damaged when its temperature reaches 50.0 oC. (a) Calculate the heat released at 12.5 g of liquid water at 100 oC is cooled to 50.0 oC. (b) Calculate the heat released when 12.5 g of steam at 100 oC is condensed and cooled to 50.0 oC. (c) Find the mass of fresh that can heat from 37 oC (normal body temperature) to 50.0 oC for the cases considered in parts (a) and (b). [The average specific heat of flesh is 3,500 J/(kg K).]
A 4.00kg block is suspended from a spring withk=560N/m. A50.0g bullet is fired straight up into the block from directly below with a speed of168m/s, Find the amplitude of the resulting simple harmonic motion
A spherical surface completely surrounds a collection of charges. Find the electric flux (with its sign) through the surface if the collection consists of (a) a single +1.90 × 10-6 C charge, (b) a single -2.40 × 10-6 C charge, and (c) both of the ..
Block Sliding into Spring A block of mass m = 5.5 kg is released from rest at a height of H = 3.0 m on a curved frictionless ramp. What is the maximum height reached by the block
zorch, an arch enemy of superman, decides to slow earth's rotation to once per 27.0 h by exerting an opposing force at, How long must zorch push with this force to achieve his goal
How many drops of water are in all the oceans on earth? Assume that contains 25 drops of water. Remember that this is an order-of-magnitude problem, so you should expect that you will only find rough estimates for the numbers you require.
A concave mirror has a radius of curvature of 32.0cm. What is its focal length?
Gold, which has a mass of 19.32 g for each cubic centimeter of volume, is the most ductile metal and drawn out into a long fiber. what is the length of the fiber
Calculate the percentage of light that goes through the polarizer-analyzer pair in terms of the incident light intensity
The gravitational slingshot effect. The planet Jupiter moving in the negative x direction at its orbital speed (with respect to the Sun). The mass of Jupiter is 1.89813 × 10^27 kilograms. Estimate the final speed of the spacecraft
A spherical balloon of volume 4.03 x10^3 cm3 contains helium at the pressure of 1.15 x10^5 Pa. How various moles of helium are in the balloon if the average kinetic energy of the helium atoms is 3.60 x10-22 J.
Place a sheet of paper under a medium-sized book lying on a smooth tabletop or desktop. Which objects move the least when the paper is pulled rapidly
A 160 object is taken to a height of 320 above the Earth's surface. What is the object's weight at this height
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