Some dogs will get fleas on their bodies. the flea will feed on the dog. this might make the dog itch. which animal is the host in this example? a.) the flea b.) the dog c.) the dog and the flea d.) neither the dog or the flea

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

Your friend increases her force on the desk by 30n . she doesn't change the direction of her push . what happens to the net force on the desk .will the desk accelerate