Marca las siguientes afirmaciones con V o F (verdadero o falso) y luego justifica aquellas que consideras falsas: -La materia es todo lo que se puede transformar químicamente
-La materia es aquello que nos ofrece la ciencia
-La materia es la energía del viento
-La materia es todo lo que nos rodea, que ocupa un lugar en el espacio y podemos percibir con nuestros sentidos.
-La materia es todo lo que está constituido de células.
Urgenteee

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.

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?