Prominences and sunspots are both: A. Jets of burning gas

B. Patches on the Sun's surface

C. Influenced by the Sun's electromagnetic field

D. Visible during an eclipse

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the