1. A rocket is fired vertically from the launch pad with a net accelevation of 20m/s². If the atmosphere is
approximately 100km thick and considering that the
acceleration is constant
a) what is the time it takes for the rocket to leave the
atmosphere?
b) What speed does the rocket reach at that time?

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

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive