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Suppose that the pressure is one atmosphere and decide the heat in joules required to produce 3.77 kg of water vapour at 100.0°C, starting with (a) 3.77 kg of water at 100.0°C and (b) 3.77 kg of liquid water at 0.0°C.
in an eye that is farsighted the eye focuses parallel rays so that the image would form behind the retina. in an eye
a cosmic ray particle travels directly over a soccer field from one goal line to the other at a speed of 0.522c. if the
Two batteries are connected in parallel to power a wheelchair. find the current provided to the motor
Two blocks (A and B) are in contact on a horizontal frictionless surface. A 40N constant horizontal force is applied to A. The mass of A is 5.0kg and the mass of B is 20kg
What is the minimum energy (in electron volts)that is required to remove the electron from the ground state of anionized atom (Z=2)? What is the ionization energy for this ion
A thermos contains 150cm^3 of coffee at 85 celsius. To coolthe coffee, you drop two 11-g ice cubes into the thermos. What is the final temperature of the coffee
By how much does a 10-cm-thick layer of glass wool insulation decrease the heat loss through the roof of a house (area 100 m2, Rf = 0.15 m2K/W for the roof alone, Rf = 2.5 m2K/W for 10-cm-thick glass wool)
A tennis player swings her 1000 g racket with a speed of 12 m/s. She hits a 60 g tennis ball that was approaching her at a speed of 24 m/s. How fast is her racket moving immediately after the impact
in reaching her destination a backpacker walks with an average velocity of 1 ms due west. this average velocity results
Explain, using thermodynamically sound principles, what each of the following temperatures represents: actual temperature, virtual temperature, dewpoint temperature,
Light of wavelength 530 nm passes through a slit of width 0.210 mm. The width of the central maximum on a screen is 8.50 mm. How far is the screen from the slit
q1. in a gas at standard temperature and pressure what is the length of the side of a cube that contains a number of
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