81.25m/s A 62-kg child is sitting on a wagon full of bricks that has a mass of 150 kg. In order to move the wagon
without touching the ground; the child throws two bricks each of mass 3.0 kg in the direction opposite to the
direction the wagon is to go. How fast will the wagon move if the bricks are thrown at 2.0 m/s?

The density of gold is 19.3g/cm3. what is the volume of a 13 g gold nugget? ( density: d= m/v)

Ogle–2013–blg–0723 is an exoplanet that is similar to earth in size and proximity to its star. this exoplanet has mass m=4.18×1024kg and radius r=5.66×106m. an astronaut whose weight on earth is w=735n lands on the planet. a. calculate m, the mass of the astronaut. b. calculate gp? , the acceleration due to gravity on the surface of ogle–2013–blg–0723. c. calculate wp? , the weight of the astronaut on the surface of ogle–2013–blg–0723. d. calculate v, the minimum velocity required to put an object into orbit above ogle–2013–blg–0723. e. calculate t, the time required to complete an orbit around ogle–2013–blg–0723.

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form