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The heat of fusion of ice is 335 j/g. When 50 g of ice at 0oC is added to 150 g of water at 45oC, determine what is the final temperature?
two stationary positive point charges charge 1 of magnitude 3.15nc and charge 2 of magnitude 1.75nc are separated by a
Five moles of an ideal gas expand isothermally at 100 degrees Celsius to five times its initial volume. Find the heat flow into the system.
The overall length of a piccolo is 32.0 cm. The resonating air column vibrates as in a pipe that is open at both ends. (a) Find the frequency of the lowest note a piccolo can play. Hz (b) Opening holes in the side effectively shortens the length of t..
An air-track cart is attached to a spring and completes oneoscillation every 5.67 s. What is the position of the cart when t =29.6 s
Two balls are approaching each other head-on. Their velocities are +14.6 and -8.88 m/s. Determine the velocity of the center of mass of the two balls
To strech a spring 6.00cm from its unstreched length, 16.0J of work must be done. What is the force constant of this spring
In living tissue, about one out of every 10-12 carbon atoms are the 14C isotope. how long ago did the owner of the bone die
Given taht 200 W/m^2 of randomly polarized light is incidentnormally on a stack of ideal linear polarizers that are positionedone behind the other with the transmission axis first vertical, How much light emerges
A current of 2.00 A is flowing through a 1000-turn solenoid of length L = 40.0 cm. What is the magnitude of the magnetic field inside the solenoid
a mass of 0.30 kg hanging from a spring with a spring constant of 86.8 nm is set into an up-and-down simple harmonic
A random sample of 42 college graduates revealed that they worked the average of 5.5years on the job before being promoted. The population standard deviation was 1.1 years. Using 0.99 degree of confidence, what is the confidence interval for the po..
An 875.0-kg compact car speeds up from 22.0 m/s to 44.0 m/s while passing another car. How much work is done on the car to increase its speed
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