A stationary mass m = 1. 3 kg is hanging from a spring of spring constant k = 1200 n/m. You raise the mass a distance of 10 cm above its equilibrium position in a time of 1. 4 s. What was the average power expended?

Jim has found that he must consume 2,300 calories a day to reach his health goals, but he doesn't want to give up his afternoon snack of pretzels. unfortunately, he tends to eat the entire bag — which amounts to 1,300 calories! what strategy should jim use to improve his habits?

Which phases do not always fill their containers? select all that apply a. solid b. liquid c. gas

Which of the following ideas did greek philosopher democritus contribute to the atomic theory? a. each object is made up of one atom, which varies in size from very small to very large. b. matter is composed of only one kind of particle, which can be easily destroyed. c. every element has a specific type of atom, which remains the same size in all forms of matter. d. all matter is composed of small particles, which combine to make larger objects.