60.0-kg skier with an initial speed of 12.0 m/s coasts up

College Physics 1
Problem 37PE A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is its average power output in watts and horsepower if this takes 7.30 s?

Anatomy & Physiology 1
Depolarization of the sarcolemma means ________. a. the inside of the membrane has become less negative as sodium ions accumulate b. the outside of the membrane has become less negative as sodium ions accumulate c. the inside of the membrane has become more negative as sodium ions accumulate d. the s

Macroeconomics 22nd
What is the Consumer Price Index (CPI), and how is it deter- mined each month? How does the Bureau of Labor Statistics calculate the inflation rate from one year to the next? How does inflation affect the purchasing power of a dollar? How does it explain differences between nominal and real interest

Biology for AP Courses
Compare and contrast a human somatic cell to a human gamete. a. Somatic cells have 46 chromosomes and are diploid, whereas gametes have half as many chromosomes as found in somatic cells. b. Somatic cells have 23 chromosomes and are diploid, whereas gametes have half as many chromosomes are are prese

Psychology 12
What three issues have engaged developmental psychologists?

Life-Span Human Development 9
Distinguish between concrete operational thinking and formal operational thinking in terms of what is operated upon mentally, using specific examples if you can.

Urban Economics 8
Leapfrog city has two rings of vacant land suitable for housing, one that is three miles from the center and a second that at the edge of the city, six miles from the center. Both rings were expected to be developed in the next year. Suppose the city imposes a new development tax of $20,000 per new h

Biology: The Dynamic Science 5
What traits in conodonts and ostracoderms are derived relative to those in hagfishes and lampreys?