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To determine the specific heat of an object, a student heats it to 100 in boiling water. She then places the 68.5 object in a 196 aluminum calorimeter containing 135 of water. The aluminum and water are initially at a temperature of 19.5, and are thermally insulated from their surroundings. If the final temperature is 22.3, what is the specific heat of the object?
Interpretation of Distance-time Graph 1. Which car is ahead and by how much distance after 3 hours? 2. Which car stops moving after 3 hours?
A proton is released from rest inside a region of constant, uniform electric field E1 pointing due North. 27.3 seconds after it is released, What is the ratio of the magnitude of E2 to the magnitude of E1
Suppose the barrel has a length of 0.511 m and an opening whose radius is 2.55 x 10-3 m. A bullet (mass = 2.6 x 10-3 kg) has a speed of 433 m/s after passing through this barrel. Ignore friction and determine the average pressure of the expanding ..
how far is this point horizontally from the end of the ramp.
Assume that light of wavelength 550 nm is being observed. Also suppose that diffraction effects, rather than atmospheric turbulence, limit the resolving power of the telescope. Find the greatest distance that these stars might be from the earth.
The immediate environment of a reactor contains a large flux of 10 MeV gamma rays. Resolve the thickness of lead required to reduce the intensity by a factor of 1012. Assume the mass absorption coefficient of Pb for 10 MeV photons is m/r = 0.06 cm..
If the scattered photon has a wavelength of 0.320nm , what is the wavelength of the incident photon, Find the kinetic energy of the recoil electron
A lighthouse that rises h1 = 43.6 ft above the surface of the water sits on a rocky cliff that extends $d$ = 20.0 ft from its base, as shown in the figure below. A sailor on the deck of a ship sights the top of lighthouse at an angle of $theta$ = 29...
The Lunar Lander of mass 1.9Ã?104kg made the last 150m of its trip to the Moon's surface in 120s, determine the upword force required to decend at a constant speed
find out kinetic energy of ball at the highest point of motion.
What is the value? in this situation, the interference pattern yet appears showing that each individual electron can interfere with itself.
A 20.0 ?, 9.00 ?, and 9.00 ? resistor are connected in parallel to an emf source, What is the potential difference across the source
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