Three asteroids have exactly the same amount of mass. the distance from asteroid a to asteroid b is 300 km, the distance from asteroid b to c is 400 km, and the distance from c to a is 100 km. between which two asteroids would the gravitational force be the largest? a). between asteroid a and b. b). between asteroid b and c. c). between asteroid c and a. d). the gravitational force between each pair of asteroids would be the same.

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.

What is the role of the ocular lens?

Which of the following elements is in the same period as phosphorus? a. carbon c. nitrogen b. magnesium d. oxygen select the best answer from the choices provided a b c d