A 0.50kg object is at rest. a 3.00N force to the right acts onthe object during a time interval of 1.50s. a. what is the velocity of the object at the end of this timeinterval?
b. at the end of this interval, a constant force of 4.00N tothe left is applied for 3.00s. what is the velocity at the end ofthe 3.00s?

i think the answer is b

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.

b. a lightning bug, plug of grass, and a worm

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada