By what mechanism is a person injured when he or she falls from a significant height? select one: a. kinetic energy is converted to potential energy; the potential energy is then converted into the work of bringing the body to a stop. b. as the person falls, the amount of kinetic energy is converted into work; work is then converted to kinetic energy upon impact. c. potential energy is created as the person is falling; the potential energy is then converted into kinetic energy upon impact. d. potential energy is converted to kinetic energy; the kinetic energy is then converted into the work of bringing the body to a stop.
Answers: 2
Physics, 21.06.2019 14:20
Physics make-up packetname_cle14. an observer hears a sound with a frequency of 400 hz. if the speed of sound is 340 m/s,what is the wavelength of the sound? a. 0.85 mb. 1.2 mc. 2.75 m13.6 m15. as sound travels from steel into air, its speed decreases. if the frequency of the wavedoesn't change, what happens to its wavelength? a. it increases(b) it decreasesc. it remains the samed. there is not enough information given
Answers: 1
Physics, 21.06.2019 21:30
According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f
Answers: 1
Physics, 22.06.2019 07:50
The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.
Answers: 2
Physics, 22.06.2019 12:30
As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?
Answers: 1
By what mechanism is a person injured when he or she falls from a significant height? select one:...
History, 04.08.2019 22:30
Social Studies, 04.08.2019 22:30
Social Studies, 04.08.2019 22:30
Biology, 04.08.2019 22:30
History, 04.08.2019 22:30
Mathematics, 04.08.2019 22:30
Mathematics, 04.08.2019 22:30
History, 04.08.2019 22:30
Business, 04.08.2019 22:30
Biology, 04.08.2019 22:30
Chemistry, 04.08.2019 22:30
Physics, 04.08.2019 22:30
History, 04.08.2019 22:30
Business, 04.08.2019 22:30