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A 150 gram Aluminum calorimeter cup contains 320 grams of water at 22 degrees Celsius. Steam at 100 degrees Celsius is routed into the calorimeter until the temperature of the cup and its contents reaches 50 degrees Celsius. What is the final total mass of the cup and its contents?
suppose that they have same internal energy, which will have a higher temperature: a metal knife in thermal equilibrim with a hot griddle or a 1kg block of ice at -25C or seven 12g ice cubes at -25C.
Find out the acceleration of the sled and child
Helium-neon laser light of wavelength 1004.5 nm is sent through a 0.473 mm wide single slit. What is the width of the central maximum on a screen 1.58 m from the slit? Answer in units of mm
A five-sided object, whose dimensions are shown in the drawing, is placed in a uniform magnetic field. Determine the magnetic flux through the slanted side
Two steel wires are stretched under the same tension. The first wire has a diameter of 0.515 mm, and the second wire has a diameter of 1.19 mm. If the speed of waves traveling along the first wire is 46.0 m/s, what is the speed of waves traveling alo..
Two electrons are placed at two corners of an equilateraltriangle whose sides are 2.0 nm long. ( 1 nm =10-9m) Calculate the magnitude of the electric potential (referenced to V = 0 at infinity) present at the empty corner of the triangle due to the..
A shopper pushes a cart 50 m south down one aisle and then turns 90° west and moves 28 m. He then makes another 90° turn and moves 11 m.
A 100 W light bulb has a resistance of about 12 ohms when cold (20 degrees C) and 140 ohms when hot. Estimate the temperature of the filament
"Beats" in sound refer to: Interference of two waves of the same frequency. Effect of relative motion of source and observer. Two media having slightly different sound velocities
a vector A has a magnitude of 40.0 m and points in a direction 20.0 degrees below the positive x axis. find the magnitude and direction of the vector C
Two children, Omar and Melinda, ride on the same merry-go-round. Omar is a distance R from the axis of rotation; Melinda is a distance 2R from the axis. What is the ratio of Omar's angular speed to Melinda's angular speed? What is the ratio of Omar's..
a student drops a ball from a window 3.5m above the sidewalk. how fast is it moving when it hits the sidewalk
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