One way to visualize atmospheric pressure is to imagine a wedge-shaped column of air that extends from the surface to the top of the atmosphere. The weight of this column causes atmospheric pressure. There are proposals to send a robotic spacecraft to Venus that will deploy a balloon that will float in the upper atmosphere and study the planet. Explain why being higher in the atmosphere would reduce the atmospheric pressure on the spacecraft and allow it to survive for a longer period of time.

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter