Terrestrial biomes are classified by the climate and their biodiversity, especially the types of primary producers. Review the climatic data displayed in this graph of the major terrestrial biomes. The tundra and the desert seem like very different biomes but they do have something in common according to the graph. Determine common features of the biome by citing evidence from the graph. A) Both biomes receive less that 75 cm annual precipitation. B) Both biomes have nighttime temperatures that are below freezing. C) The primary producers of both biomes are low growing and non-woody. D) The growth of primary producers is restricted because of poor soil quality.

1. consider the case in which air fills air shocks on a truck trailer. the pressure in the shocks is 2 mpa. the temperature is 300 k. the diameter of the shock piston is 10 cm and the initial length of the cylindrical cavity containing the compressed air is 40 cm. a. the truck is gradually loaded over a period of a day in a static setting. the temperature is held constant for the atmosphere and thus for the gas shock. calculate the compressibility of the air in the shock for this condition when the truck is initially being loaded. b. if the shocks were loaded in a dynamic setting by driving over bumps, what would be the compressibility? state your assumption. c. what is the initial load on the shock if the shock is in an atmospheric 100 kpa? d. if the shock is compressed using the process described in part a, and the air shock compressed air cavity length decreases to 20 cm, what is the additional load applied to the shock?

How is the ideal mechanical advantage of a wheel and axle calculated?

The momentum of a man riding his bicycle downhill can be calculated. the bicycle and the man have a combined mass of 40 kg. the velocity of the bicycle is 10 m/s. calculate the momentum.