A student claims that the cart can only be at rest if it is experiencing balanced forces. Choose the statement that correctly evaluates this student’s claim. A.) The student is correct because only objects that are experiencing unbalanced forces can move.
B.) The student is correct because an object experiences balanced forces will remain at rest. C.) The student is incorrect because experiencing unbalanced forces can cause an object to come to rest.
D.)The student is incorrect because objects moving at a constant velocity is experiencing balanced forces.

Phase changes are chemical changes. true or false

Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.