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How does the fundamental frequency of a standing wave on a string vary with string length? What is an experiment I can do to prove a relation between the two. This is for an IB internal assessment topic I chose. Any equations I can use to model the relation as well?
Cans of tomato sauce are to be cooled in a refrigerator. The cans are cylindrical and 20 cm in length and 15 cm in diameter. The can surface is at 30°C and the air in the refrigerated space is at 10°C. Two alternate stacking are possible-namely vertical stacking and horizontal stacking. Determine the method that will be better. Neglect cooling on the end surfaces
A heat engine takes in 1500 J of heat at 2000 K and rejects 950 J of heat at 1000 K. Find the (a) maximum efficiency of this engine and (b) its actual efficiency.
An object displaces 2.3×10-3 m3 of water when totally immersed into it. What is the buoyant force exerted by the water?
1. An object displaces 2.3×10-3 m3 of water when totally immersed into it. What is the buoyant force exerted by the water?
The moon has a mass of 7.35×10
22
kg
7.35×1022 kg and a radius of 1.738×10
6
m
1.738×106 m. At what speed must a rocket be launched from the surface of the moon so as not to fall back to the moon?
a 20N attached to the end of a 20m long string is rotating as a conical pendulum. if it rotated as 50 rev/min, what angle will the string make with the vertical?
An ice cube is placed in a glass of water. The cube is 2.0 cm on each side and has a density of 0.917 g/cm3. What is the magnitude of the buoyant force on the ice?
A waterbed is 2 meters on a side and 30 cm deep. A) Find its weight. B) Find the pressure of the bed exerted onto the floor.
4. Calculate the absolute pressure at an ocean depth of 1000 meters. Assume the density of water is 1000 kg/m3 , and take Pa = 1.013 X 105 Pa.
A blimp is filled with 300 m3 of helium. How big a payload can the balloon lift (the density of air is 1.29 kg/m3 , the density of helium is .179 kg/m3 .)
