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To determine the specific heat of an object, a student heats it to 100 degrees C in boiling water. She then places the 110 g object in a 172 g aluminum calorimeter containing 148 g of water. The aluminum and water are initially at a temperature of 19.6 degrees, and are thermally insulated from their surroundings.
If the final temperature is 23.8 degrees, what is the specific heat of the object?
Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), each with a mass of 3.27 × 10-25 kg. Determine the radius of the path
Explain by how much horizontal force F must a sprinter of mass 62.0 kg exert on the starting blocks to produce this acceleration?
plan a free-body diagram of the wire and bird system. How much tension does the bird produce in the wire? Ignore the weight of the wire.what is the rotational inertia of the wheel.
Using Einsteins formula
The moon is slowly getting further from the earth by about 2 inches every year. At present, it takes the moon 27.321 days to orbit the earth. What is velocity in present day
q. a woman walks 252. m in the direction 65.0deg east of north then 212. m directly east.a find the final displacement
A 2.30-g bullet embeds itself in a 1.40-kg block, which is attached to a spring of force constant 780N/m, Find the time for the bullet-block system to come to rest
What is the period of oscillation of the scale? State your reply numerically in seconds.
A steel wire of mass 0.400kg and length 0.640m supports a 102 kg block. The wire is struck exactly at its midpoint causing a small displacement. How long does it take the peak of this displacement to reach the top of the wire.
Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale
Two guitarists attempt to play the same note of wavelength 6.50cm at the same time, What is the frequency of the beat these musicians hear when they play together
A 0.360 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball.
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