The field is 78 meters long. A timer started when the sled started at
the top of the hill. When the sled is at the bottom of the hill and the beginning of
the field the timer was at 4 seconds. When the sled is at the end of the field the
timer was at 16 seconds. What is the sled's velocity as it crosses the field? *
Answers: 3
Physics, 22.06.2019 06:10
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.
Answers: 3
Physics, 22.06.2019 23:50
The star nearest to our sun is proxima centauri, at a distance of 4.3 light-years from the sun. how far away, in km, is proxima centauri from the sun?
Answers: 3
Physics, 23.06.2019 07:40
Consider lifting a box of mass m to a height h using two different methods: lifting the box directly or lifting the box using a pulley (as in the previous part). what is wd/wp, the ratio of the work done lifting the box directly to the work done lifting the box with a pulley?
Answers: 2
The field is 78 meters long. A timer started when the sled started at
the top of the hill. When the...
Mathematics, 01.07.2020 22:01
History, 01.07.2020 22:01
History, 01.07.2020 22:01