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Discuss the most significant sources of error in the experimental procedures. if the temperature of ice added to the calorimeter in the heart of fusion experiment were less than 0 degrees Celsius how would this affect the results? Why must you use small pieces of ice rather than large pieces?
A molecule has a rotational inertis of 14,000 u.pm^2 and isspinning at an angular speed of 4.3 X 10^12 rad/s. Calculate the rotational kinetic energy inelectron-volts
Two cars have collided at right angles at an intersection: Car A was eastbound; car B was northbound. The marks on the pavement show that the vehicles both moved together in the same direction immediately after the collision. That direction was at..
The takeoff speed for a jet liner is 100 m/s. The mass of the airliner = 30 x 103kg, coefficient of friction between its tires and runway surface =0.1, and the engine thrust = 150 x 103N. Starting from rest, how much time is needed for take off?
A diverging lens with f= -26.0 cm is placed 11.0 cm behind a converging lens with f= 20.0 cm. Where will an object at infinity be focused
What is the total translational kinetic energy in a test chamber filled with nitrogen (N2) at 2.22×105 Pa and 20.7°C? The dimensions of the chamber are 1.00 m × 4.30 m × 6.50 m. The ATOMIC weight of nitrogen is 28.0 g/mol, Avogadro's number is 6.022 ..
A parallel-plate capacitor with circular plates of radius 0.20 m is being discharged. At what rate is the electric field between the plates changing
A 80 kilogram person standing erect steps off a 2.3 meter high diving platform and begins to fall from rest. Find what average force did the water exert on him
An air-filled toroidal solenoid has a mean radius of 15.5cm and a cross-sectional area of 4.95cm2. How many turns does the winding have?
A 7000-kg truck starts to roll down aroad with a 30 degree incline. People rush to stop it. How much force must they apply to stop it
You have a convex lens of focal length 3cm and NA=0.6. Light diffracts from two pinholes separated by a distance d. What is the smallest d can resolve using green light and what is the diameter of the lens?
A major artery with a cross-sectional area of 1.00cm2 branches into 18 smaller arteries, By what factor is the average velocity of the blood reduced when it passes into these branches
As an eager scientist on a hot summer day you wish to determine how much ice to buy to add to your cooler which is filled with 32 cans of soda which are warm at 87.7°F. how much ice needs to be added to your cooler
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