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A 0.70kg piece of lead at a temperature of 160C is dumped into 800mL of water at a temperature of 22C
Part A What's the final equilibrium temperature? Express your answer using two significant figures.
Part B How much heat flowed in this process? include the appropriate units.
question1a plate of mass m moves horizontally with speed v on a frictionless table. a mass m is dropped vertically onto
When a second pipe is played at the same time, a 1.40 Hz beat note is heard. By how much is the second pipe too long.
A small block having mass m sits on a uniform disk that has radius R=0.5m. What is the initial angular velocity of the disk
A sample containing beryllium (atomic mass 9 u), aluminum (27 u), and an unknown element is placed in a mass spectrometer. What is the mass of the unknown element
The rms current in a solenoid is 0.036 A when the solenoid is connected to a 18 kHz generator. What is the peak voltage of the generator
a layer of water covers a slab of material X in a beaker. A ray of light traveling upwards follows the path indicated. Find the angle the light makes with the normal in the air
An object is located at a distance of 113 cm from a concave mirror of focal length 23.3 cm. Another concave mirror of focal length 5.61 cm is located 23.3 cm in front of the first concave mirror. What is the total magnification by the combination
q1. a ferris wheel is a vertical circular amusement ride with radius 6 m. riders sit on seats that swivel to remain
A contestant on "Survivor" is challenged to find buried treasure in a featureless desert. For how long should she run in order to retrieve the treasure
A 59.3-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.714, What horizontal pushing force is required to just start the crate moving
In an electron microscope, there is an electron gun that contains two charged metallic plates 2.65 cm apart. Determine the time interval the electron spends between the plates
a stone is projected at a cliff of height h with an initial speed of 44.0 m/s directed at an angle ?0 = 51.0° above the horizontal. find the speed of the stone just before impact
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