The motion of a car is represented as shown. The average
velocity is:
1: 10m/s east
2-...
Physics, 04.10.2021 17:10 kelleemaebarnha
The motion of a car is represented as shown. The average
velocity is:
1: 10m/s east
2-50m/s west
3-0.1m/s east
4:500m/sEast
Answers: 2
Physics, 22.06.2019 23:40
Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.
Answers: 3
Physics, 23.06.2019 08:30
List and describe three ways that humans can change ecosystems and three ways that humans can protect ecosystems.
Answers: 2
Physics, 23.06.2019 08:30
Industrial processes often require the damping of vibrations. consider a workbench that uses four large ideal springs in place of traditional legs, with each spring supporting one corner of the workbench and exhibiting a force constant of 47500 n/m. this workbench is used when creating products that involve highly unstable chemicals. according to specifications, the acceleration of the manufacturing equipment must be held to less than 22.3 m/s2 for the manufacturing process to proceed safely. the amplitude of vibrations are expected to remain under 0.622 mm throughout. given that the workbench and maufacturing equipment combine to 6.05 kg, find the maximum acceleration expected of the equipment and workbench. (ignore the mass of the springs.)
Answers: 2
Physics, 23.06.2019 13:00
The maximum wavelength of light required to eject an electron from zinc is 270nm. calculate the threshold frequency of zinc.
Answers: 1
Mathematics, 29.07.2019 18:30
Mathematics, 29.07.2019 18:30
History, 29.07.2019 18:30
Health, 29.07.2019 18:30
Mathematics, 29.07.2019 18:30
Mathematics, 29.07.2019 18:30
Biology, 29.07.2019 18:30
History, 29.07.2019 18:30
History, 29.07.2019 18:30
Health, 29.07.2019 18:30
History, 29.07.2019 18:30
Biology, 29.07.2019 18:30