Physics, 02.04.2020 20:06 treaustin6978
A block of mass 5kg slides down a surface inclined at 30 degrees to the horizontal. The coefficent of
kinetic friction is 0.3. A string attached to the block is wrapped around a flywheel on a fixed axis at O.
The flywheel has a mass 30kg and a moment of inertia 0.25kg·m2 with respect to the axis of rotation. The
string pulls without slipping at a perpendicular distance of 0.4m from the axis. (a) What is the acceleration
of the block down the plant? (b) What is the tension in the string?
Answers: 3
Physics, 22.06.2019 03:30
The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared
Answers: 1
Physics, 22.06.2019 04:00
Acompound machine is also called a machine. a. force b. simple c. complex d. directional
Answers: 1
Physics, 22.06.2019 14:30
Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?
Answers: 3
Physics, 22.06.2019 18:10
Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)
Answers: 1
A block of mass 5kg slides down a surface inclined at 30 degrees to the horizontal. The coefficent o...
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