As you may well know, placing metal objects inside a microwave oven can generate sparks. two of your friends are arguing over the cause of the sparking, with one stating that the microwaves \"herd\" electrons into \"pointy\" areas of the metal object, from which the electrons jump from one part of the object to another. the other friend says that the sparks are caused by the photoelectric effect. in this problem, we will prove or disprove the latter idea using basic physics. suppose the typical work function of the metal is roughly 4.480 × 10-19 j. calculate the maximum wavelength in angstroms of the radiation that will eject electrons from the metal.

Select the most likely product for this reaction: koh(aq) + co2(g) – ? k2co3(aq) + h2o(1) k(s) + h2(g) + o2(g) k(s) + co3(9) +h2

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give

Ab c or d ? i’m not sure what the answer is