Aroller-coaster car has a mass of 1080 kg when fully loaded with passengers. as the car passes over the top of a circular hill of radius 16 m, its speed is not changing. (a) at the top of the hill, what is the normal force (using the negative sign for the downward direction) fn on the car from the track if the car's speed is v = 7.6 m/s? (b) what is fn if v = 17 m/s? use g=9.81 m/s^2.
Answers: 2
Physics, 22.06.2019 00:00
Astate of matter all that has define volume and can flow is a(n)
Answers: 3
Physics, 22.06.2019 21:00
If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?
Answers: 2
Physics, 22.06.2019 22:00
Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.
Answers: 3
Physics, 22.06.2019 22:20
Which symbol in the first law of thermodynamics represents the sum of the chemical and thermal energy stored in atoms and molecules? a. q b.w c.v d.u
Answers: 3
Aroller-coaster car has a mass of 1080 kg when fully loaded with passengers. as the car passes over...
Mathematics, 09.11.2020 19:40
Biology, 09.11.2020 19:40
Social Studies, 09.11.2020 19:40
Physics, 09.11.2020 19:40
Advanced Placement (AP), 09.11.2020 19:40
World Languages, 09.11.2020 19:40
Arts, 09.11.2020 19:40
English, 09.11.2020 19:40
Computers and Technology, 09.11.2020 19:40
Mathematics, 09.11.2020 19:40
English, 09.11.2020 19:40
Mathematics, 09.11.2020 19:40
Mathematics, 09.11.2020 19:40