Two bowling balls each have a mass of 8 kg. if they are 2 m apart, what is the gravitational force between them? g = 6.67 × 10^-11 n⋅(m/kg)^2 a. 3.21 10^-8 n b. 2.14 10^-9 n c. 2.68 10^-10 n d. 1.07 10^-9 n

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

According to newton's second law, when the same force is applied to two objects of different masses, a the object with greater mass will experience a great acceleration, and the object with less mass will experience an even greater acceleration, b. the object with greater mass will experience a smaller acceleration, and the object with less mass will experience a greater acceleration, c. the object with greater mass will experience a greater acceleration, and the object with less mass will experience a smaller acceleration, d. the object with greater mass will experience a small acceleration, and the object with less mass will experience an even smaller acceleration.

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