On a break from class you decide to ride up and down all of the elevators on the upper campus. you approximate your mass to be 70 kg because that is the mass of a person we used in class last week. you guess that the elevator in the aliso lab building is going up at a speed of 10 m/s. the elevator takes 4.0 s to brake at the second floor. what is your weight before the elevator started braking

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.