Design and execute an experiment that demonstrates that the acceleration of a connected system of masses (the cart and any connected mass) is directly proportional to the system’s total mass. you will need to use the data generated by the experiment to produce a plot of the object’s acceleration versus its fnet, a vs. fnet, as well as an equation that best represents the data. the instructor may test your analysis by asking you to predict the acceleration of the object for a given system of masses.

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.

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000