Agroup of students were collecting soil samples near a river. one student noted there was a lot of sand in one of the samples. he said" all this sand must have washed up from beach where the river enters the ocean." another student said, "i think it came from the rocks in the mountains. but there aren't any mountains near us. i don't understand how the sand got there." what would you tell the students to them solve where the sand came from?
Answers: 1
Physics, 22.06.2019 01:30, kayleetruman
The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection
Answers: 2
Physics, 22.06.2019 10:30, Bayabbay8380
Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.
Answers: 1
Physics, 22.06.2019 12:50, starr3971
Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.
Answers: 2
Agroup of students were collecting soil samples near a river. one student noted there was a lot of s...
History, 04.02.2020 08:52
History, 04.02.2020 08:52
Mathematics, 04.02.2020 08:52
Mathematics, 04.02.2020 08:52
Mathematics, 04.02.2020 08:52