Martín viaja en un velero con una velocidad constante de 30 km/hr. (recuerde que debe trabajar todo en metros y segundos) a) Si lleva viajando 3 minutos en el mar, ¿Cuántos metros ha recorrido?

Can someone me with 6 to 10 plz this is for masteries test.

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.