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• the waves used by a microwave oven to cook food have a frequency of 2.45 gigahertz
  
• erica throws a tennis ball against a wall, and it bounces back. which force is responsible for sending the ball back to erica?
  
• which kind of wave would be observed in outer space between planets, where there is very little matter? an electromagnetic wave, such as an x-ray an electromagnetic wave, such as a sound wave a mechanical wave, such as an x-ray a mechanical wave, such as a sound wave
  
• what point is goldman trying to make with his baseball analogy at the beginning of his talk?
  
• which of the following is nicknamed the ""powerhouse"" of the cell? nucleolus vesicles mitochondrion golgi apparatus
  
• which describes the formation of horizon b? forms at the surface features parent material undergoes the most change forms due to decomposed material
  
• what is the effect of the biogeochemical cycles? cycling energy through a food chain recycling matter through the biosphere recycling rocks through the layers of earth cycling nutrients through the human body
  
• during a study that lasted several years, a researcher found that the number of breeding pairs of florida scrub jays in the study area remained relatively constant. for approximately every 25 acres of land, there was only one breeding pair. which is a limiting factor that most likely prevents an increase in scrub jays in this habitat?
  
• select the correct answer. ron and nick chose to start their own businesses. ron wanted to start an ice cream shop, and nick wanted to launch a television manufacturing company. ron and nick had equal amounts of funds on hand and no government regulations restricting them. months later, however, ron has already set up his business, while nick is still struggling to raise additional funds to build a factory. what was the main factor that affected nick’s business? a. an irrelevant business idea b. low demand for tvs in his country c. high start-up costs d. lack of labor
  
• who does work-based learning benefit? a. students b. employers c. schools d. all of the above