Guys i really need help with my physics question: A marble has rolled down a track and into a vertical loop with a diameter of 4.5m. At the top of the loop, the track exerts a downward force on the marble equal to 1.4 times the marble's weight. Determine the speed of the marble at the top of loop.

all of the answers are correct.

falsification is manipulating research materials, equipment, or processes or changing or omitting data or results such that the research is not accurately represented in the research record. plagiarism is the appropriation of another person's ideas, processes, results, or words without giving appropriate credit.

explanation:

the expression 15n + 2(3p) represents the amount isaiah spent buying gasoline and snacks, where n represents the price of each gallon of gasoline and p represents the cost of each snack that he bought. which statement is true about the amount isaiah spent?

less than one you can't create energy