You are drinking from a standard (10 oz) coffee cup when a fly starts buzzing around your hands. after finishing your beverage, you quickly trap the fly inside the cup. you then notice another fly is buzzing nearby and you deftly manage to trap the second fly in the cup without releasing the first fly. if you were able to continue trapping flies until the cup was full, estimate how many flies you could trap in the cup.

The ozone hole appears in antarctica during

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?

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.