A very light ideal spring stretches by 21. 0 cm when it is used to hang a 135-n object. What is the weight of a piece of electronic equipment that would stretch the spring by 44. 9 cm if you hung the equipment using the spring?.

Abag contains even and odd numbered balls in the ratio of 3: 7, respectively. for each of the following, what is the probability of drawing an even-numbered ball? the total number of balls is 240 and 30 of the odd-numbered balls are renumbered by multiplying the numbers by 4.