Pls help for brainliest:) If an object is placed 10cm in front a double convex lens that has a focal length of 15cm, what will be the resulting distance? What type of image this?

A. 20cm; real image
B. 15cm; virtual image
C. -30cm; virtual image
D. -5cm; real image

Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?

In physics the desire of an object to keep doing what it is doing is termed?

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)