Which of the following most accurately pairs up the events on the left with the elements that they create on the right? big bang = medium elements; nuclear fusion = lightest elements; supernovas = heaviest elements
big bang = lightest elements; nuclear fusion = medium elements; supernovas = heaviest elements
big bang = lightest elements; nuclear fusion = heaviest elements; supernovas = medium elements
big bang = heaviest elements; nuclear fusion = medium elements; supernovas = lightest elements

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?

What is the major limitation to the light microscope?