Physics, 06.10.2019 01:00 linnybear300
1. a snowboarder of mass 60 kg is at rest on the top of a sand dune. the coefficients of static and kinetic friction are 0.55 and 0.4675, respectively. 60 kg μk = 0.4675 μs = 0.55 what is the angle the incline must exceed so that the snowboarder starts sliding? the acceleration of gravity is 9.8 m/s2 . answer in units of ◦. 2. what is the acceleration down the incline if = 35 ◦, exceeding the value found in the previous question? . i am so confused.
Answers: 1
Physics, 21.06.2019 22:30
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
Answers: 3
Physics, 22.06.2019 14:00
Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3
Answers: 3
Physics, 22.06.2019 17:50
Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system
Answers: 2
Physics, 22.06.2019 20:00
Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?
Answers: 1
1. a snowboarder of mass 60 kg is at rest on the top of a sand dune. the coefficients of static and...
Mathematics, 16.10.2020 16:01
Mathematics, 16.10.2020 16:01
Mathematics, 16.10.2020 16:01
Mathematics, 16.10.2020 16:01
Mathematics, 16.10.2020 16:01
Mathematics, 16.10.2020 16:01
Mathematics, 16.10.2020 16:01
Spanish, 16.10.2020 16:01