Objects with masses of 150 kg and a 450 kg are separated by 0.350 m. (a) Find the net gravitational force exerted by these objects on a 61.0 kg object placed midway between them.

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

The ph is the a.independent variable b.the dependent variable c.control group