Physics, 10.11.2019 02:31 Yalmar6874
Achild with mass 40 kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of rotation. the merry-go-round accelerates from rest up to 0.4 rev/s in 10 s. if the coefficient of static friction between the child and the surface of the merry-go-round is 0.6, does the child fall off before 5 s?
Answers: 3
Physics, 22.06.2019 03:00
Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.
Answers: 1
Physics, 22.06.2019 10:10
In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?
Answers: 1
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Physics, 22.06.2019 15:00
Lightning is an example of what phenomenon? a release of a large amount of energy an absorption of a large amount of energy a natural electric circuit a natural electric current
Answers: 1
Achild with mass 40 kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of...
Mathematics, 13.11.2020 01:00
Mathematics, 13.11.2020 01:00
Mathematics, 13.11.2020 01:00
Health, 13.11.2020 01:00
Mathematics, 13.11.2020 01:00
Business, 13.11.2020 01:00
History, 13.11.2020 01:00
Mathematics, 13.11.2020 01:00