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A cube of ice is taken from the freezer at -7.7°C and placed in a99g aluminum calorimeter filled with297g of water at room temperature of 20°C. The final situation is observed to be all water at15°C. What was the mass of the ice cube?
Spaceman Spiff sits just outside the Milky Way galaxy with a cup of liquid Helium which is at approximately 4K (-269 degrees C). what is the latent heat of vaporization of liquid Helium
question1the period of a simple pendulum defined as time necessary for one complete oscillation is measured in time
A 100 meter length of steel changes temperature by 30 C during the course of a day. If the coeffcient of thermal expansion of steel is 12 parts per million per C, what is the change in length of the steel
A bowling ball made for a child has two thirds the radius of an adult bowling ball. They are made of the same material (and therefore have the same mass per unit volume). By what factor is the mass of the child's ball reduced
A laser has a 200-W, 1.0 mm^2 cross-sectional area beam. find the amplitude of the electric and magnetic fields
An iron bar 40 cm long is braised to a copper bar 50 cm long and of the same diameter. determine the temperature of the junction point
A standing observer perceives a train whistle to have a frequency of 300 Hz. compute the frequency of the sound waves emitted from the train
For a damped oscillator with a mass of 360 g, a spring constant 110 N/m and a damping coefficient of 87.00 g/s, what is the ratio of the amplitude of damped oscillations to the initial amplitude at the end of 28 cycles.
A 2 kg mass is placed at rest against a spring of spring constant 5 N/m, which is compressed by 10 cm from its equilibrium position. compute the amount of potential energy stored in the spring
Light of wavelength 595.00 nm is incident normally on a diffraction grating, How many slits/mm are marked on the grating
A cylindrical storage tank has a radius of 1.22 m. When filled to a height of 3.71 m, it holda 14 300 kg of a liquid industrial solvent.
In the school cafeteria, a trouble-making child blows a 10.0 g spitball through a 30.0 cm straw. what is the speed of the spitball as it leaves the straw
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