Vittorio needs to clean the dusty mirror hanging on the wall beforehe can use it, but he would like to clean as little of the mirroras possible. a) vittorio would like to be able to see the logo on his shirt. draw the incident and reflected raysshowing the light from the logo reflecting off the mirror into hiseyes. the rays should meet at the point on the mirror that needscleaning. question 2: vittorio would like to be able to check whether his shoelaces aretied. draw the incident and reflected rays showing the light fromhis shoelaces reflecting off the mirror into his eyes. again, therays should meet at the point on the mirror that needscleaning.

If the force on an object is in the negative direction, the work it does on the object must be [2 points a) negative. b) positive c) the work could be either positive or negative, depending on the direction the object moves

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.