Acar has a kinetic energy of 1.9 × 103 joules. if the velocity of the car is decreased by half, what is its kinetic energy? 2.2 × 102 joules 4.7 × 102 joules 5.2 × 102 joules 5.8 × 103 joules

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.

The energy produced as a result of this flow of electrons from atom to atom is called

What structural formula represents 4 electrons shared between two atoms?