Answers: 2
Physics, 21.06.2019 22:40
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 3
Physics, 22.06.2019 05:30
Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.
Answers: 2
Physics, 22.06.2019 06:30
Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.
Answers: 1
Physics, 22.06.2019 07:30
Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories
Answers: 3
At 3: 00 a car passes mile marker 74 as it cruises along the highway. the car then passes mile marke...
Mathematics, 18.08.2019 23:50
Mathematics, 18.08.2019 23:50
Mathematics, 18.08.2019 23:50
History, 18.08.2019 23:50
English, 19.08.2019 00:00
Social Studies, 19.08.2019 00:00
Geography, 19.08.2019 00:00
Mathematics, 19.08.2019 00:00
Geography, 19.08.2019 00:00
Chemistry, 19.08.2019 00:00
History, 19.08.2019 00:00
Mathematics, 19.08.2019 00:00
Social Studies, 19.08.2019 00:00