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# A bird flies straight down from its perch on the branch of a tree to the ground, a distance of 10.0m. the bird then returns straight up to the perch. the total of flight is 4.0s. what is the bird’s a) distance travelled? b) displacement? c) average speed? d) average velocity?   ### Another question on Physics Physics, 21.06.2019 16:10
Zirconium has an hcp crystal structure and a density of 6.51 g/cm3. (a) what is the volume of its unit cell in m3? (b) if the c/a ratio is 1.593, compute the values of c and a. Physics, 22.06.2019 01:00
An airplane is heading due south at a speed of 620 km/h . part a: if a wind begins blowing from the southwest at a speed of 90 km/h (average), calculate the velocity (magnitude) of the plane relative to the ground. [hint: first draw a diagram.] express your answer to three significant figures and include the appropriate units. part b: calculate the velocity (direction) of the plane relative to the ground. express your answer to three significant figures and include the appropriate units. part c: calculate how far from its intended position will it be after 14 min if the pilot takes no corrective action. express your answer to three significant figures and include the appropriate units. Physics, 22.06.2019 02:30
Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes Physics, 22.06.2019 05:00
As a 6.00-mole sample of a monatomic ideal gas expands adiabatically, the work done on it is −2.50×10^3j. the initial temperature and pressure of the gas are 460k and 2.80atm. calculate the following. (a) the final temperature (b) the final pressure
A bird flies straight down from its perch on the branch of a tree to the ground, a distance of 10.0m...
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