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An insulated beaker with negligible mass contains liquid water with a mass of 0.215 kg and a temperature of 66.8 C. How much ice at a temperature of -23.3 C must be dropped into the water so that the final temperature of the system will be 35.0 C? Take the specific heat of liquid water to be 4190J/kg x K , the specific heat of ice to be 2100 J/kg x K, and the heat of fusion for water to be 3.34×105J/kg .
An automotive junkyard crushes old vehicles into cubes0.34 m on a side. Assume that these cubes are made of iron. Find the resistance you would expect to encounter if you connected one wire to the center of a face and one wire to the center of the..
A family ice show is held at an enclosed arena. the skaters perform music with level 800 dB. this level is too loud for your baby, what is the total sound intensity that engulfs your
In an action movie, the heroine is supposed to jump with a motorcycle from the roof of one skyscraper to another one. what minimum initial speed would she need to make the jump
The magnitude and direction of the total magnetic field at the origin.
Water can hold 36 grams (g) of salt in every 100 milliliters (mL). The ocean contains 3.6 g of salt in every 100 mL. As a solution, which is seawater.
An X-ray photon with a wavelength of 0.250nm nm scatters from a free electron at rest. Find the initial momentum of the photon
At a point where an irrigation canal having a rectangular cross section is 18.3m wide and 3.70m deep, the water flows at 2.25cm/s. How deep is the canal at this point
On a banked race track, the smallest circular path on which cars can move has a radius of 102 m, while the largest has a radius 157 m, Find the smallest and largest speed the cars can remove without the presence of friction
a worker pushes horizontally on a 35 kg crate with a force of magnitude 110 n. the coefficient of static friction
Consider a star of mass M=10Msun, composed entirely of fully ionized C-12. Its core temperature is 6*10^8K. a. What is the mean particle mass mbar in units of m(hydrogen)?
A television set connected to a 120 outlet consumes 76 of power. How much current flows through the television
how much time passes before the brick lands on the ground. If the wind speed is 26 mph, find the velocity of the plane in still air.
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