Physics, 23.02.2021 18:20 sindy35111
A space station travels 5000 kilometers in 4 hours. What is its speed?
Group of answer choices
20000 kilometers/hour
12500 kilometers/hour
2000 kilometers/hour
1250 kilometers/hour
Answers: 1
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, 22.06.2019 12:30
An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.
Answers: 2
Physics, 22.06.2019 23:30
You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?
Answers: 2
A space station travels 5000 kilometers in 4 hours. What is its speed?
Group of answer choices
English, 17.12.2019 01:31
Mathematics, 17.12.2019 01:31
History, 17.12.2019 01:31
Mathematics, 17.12.2019 01:31
Mathematics, 17.12.2019 01:31
History, 17.12.2019 01:31
Chemistry, 17.12.2019 01:31
Mathematics, 17.12.2019 01:31