NECESITO AYUDA PORFAVOr es PARA AHORA EVALUACIÓN DE INTRODUCCIÓN A LA FÍSICA 4G

1-¿Qué energía cinetica tendrá un cuerpo de 45kg de masa cuando lleva una velocidad de 76km/h?

2-Un adulto de 80kg camina a una rapidez de 4m/s
a)¿Cuaál es su energía cinetica?
b)Cual seria su rapidez si su energía cinetica se duplicara?

When a neutrally charged atom loses an electron to another atom, the result is the creation of a. two charged atoms. b. two negatively charged atoms. c. two positively charged atoms. d. two neutrally charged atoms.

You notice a very one-dimensional-thinking snail crawling along one rail of a railroad track. naturally, you remove it to a safer place. but before you do, you observe it as it moves from position xi = -92.9 cm to position xf = -64.9 cm along the rail, as measured from a point where one rail abuts the next. what is the snail\'s displacement δx in centimeters?

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?