An astronaut, whose mission is to go where no one has gone before, lands on a spherical planet in a distant galaxy.
as she stands on the surface of the planet, she releases a small rock from rest and finds that it takes the rock 0.420 s to fall 1.90 m.
a) if the radius of the planet is 7.40×107 m,
b) what is the mass of the planet?

What are segments of dna that code for a particular trait. a combination of dna and proteins make up what

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?

Calculate the velocity of a car traveling in a straight path due east with a distance of 16 meters in 2 seconds. question 1 options: a)32 m/s b)32 m/s e c) 8 m/s e d) 8 m/s