If a television with mass 15kg is lifted to a shelf of height 1.2m how much gravitationallyl potential energy is added to the television

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?

Find the mass by adding the numbers from the three sliders