Physics, 04.02.2020 08:57 dessssimartinez6780
Which of the following statements about average speed is correct? a. the average speed is equal to the magnitude of the average velocity. b. the average speed can never be greater than the magnitude of the average velocity. c. the average speed can never be less than the magnitude of the average velocity. d. if the average speed is zero, then the average velocity must be zero. e. if the average velocity is zero, then the average speed must be zero.
Answers: 3
Physics, 22.06.2019 06:00
Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves
Answers: 3
Physics, 22.06.2019 10:50
Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.
Answers: 3
Physics, 23.06.2019 03:30
First to answer will be the brainliest i need the answer asap
Answers: 1
Physics, 23.06.2019 07:30
Vi. on another planet, a spring with constant 4.7 n/m is set up and allowed to expand verticaly freely. 8.4kg mass is placed on the spring and the spring extends 5.28m. calculate the exected extension on earth.
Answers: 1
Which of the following statements about average speed is correct? a. the average speed is equal to...
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