Physics, 18.10.2019 21:00 geometryishard13
When two objects are placed end-to-end, they are said to be in series. here, you will look at a block hanging from two springs in series, originally connected by an intermediate block which will then be removed. the first spring hangs from a hook in the ceiling and has a stiffness of 231 kg/s2. before a 222 g block is placed on the spring's bottom end, it has a length 18 cm. the second spring has a stiffness of 172.5 kg/s2 and equilibrium length 11 cm is attached at the bottom of the first block. a second block, which as a mass 296 g, is suspended from the bottom of the second block. (a) how far below the hook is first block? (b) how far below the hook is the second block? (c) what is the center of mass of the system? for the remaining questions, let the mass of higher block go to 0 g. (d) how far down below the hook is the connection point between the springs (where the higher block would have been)? (e) how far below the hook is the remaining block? consider the pair of springs as if they were a single spring. (f) what would its equilibrium length be? (a) what is the extension of the spring? (h) what would its spring constant be?
Answers: 1
Physics, 22.06.2019 06:30
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
Answers: 1
Physics, 22.06.2019 09:30
This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer
Answers: 2
When two objects are placed end-to-end, they are said to be in series. here, you will look at a bloc...
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