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Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 18cm. You take the balloon in an airplane, where the pressure is 0.89 atm.If the temperature is unchanged, what's the balloon's new radius? include appropriate units.
When 4425 J of heat are added to a 0.16-m-long silver bar, What is the mass of the bar
A vertical container with base area measuring 16 cm by 18 cm is being filled with identical pieces of candy, each with a volume of 50 mm3 and a mass of 0.020g. Suppose that the volume of the empty spaces between candies is negligible.
A copper rod and an aluminum rod of equal diameter are joined end to end in good thermal contact. what must be the length of the aluminum rod so that the temperature at the junction is 50°C
A 60-kg skier starts from rest from the top of a 50-m high slope. If the work done by friction is -6.0 x 103 J, what is the speed of the skier
Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of 9 grams of argon is raised by 75 K under conditions of constant pressure. Assuming that argon is an ideal gas, evaluate how much heat is required? J
A photographer uses his camera, whose lens has a 60mm focal length, to focus on an object 2.5m away. How far must the lens move to focus on this second object
Under certain conditions, the human body can withstand an acceleration of 10 g%u2019s. What is the net force (in Newtons) acting on a person
Suppose that inside a motor 33 A passes through a 250 turn circular loop that is 11.5 cm in radius. What is the magnetic field strength created at its center in T
A 1260kg car pushes a 2180kg truck that has a dead battery. When the driver steps on the accelerator, find the magnitude of the force the truck applies to the car
After staying on Penitgy for a few days, the landing craft returns to its mothership. What height does the landing craft attain during this time period
A boxcar of mass 5.32 x 10^4 kg is rolling south at 3.49 m/s when it collides and couples with another boxcar that is rolling north at 5.12 m/s. Find the mass of the boxcar
A 53.0 kg cheerleader uses an oil-filled hydraulic lift to hold four 130 kg football players at a height of 1.30m. what is the diameter of the football players' piston
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