ASTRON 890: Stars, Galaxies and the Cosmos

School: University of Pittsburgh

Number of Notes and Study Guides Available: 0

Videos

Flashlight Bulb Power and Battery Terminal Voltage

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Illuminate the science of flashlight power! In this video, we explore how a 6V bulb is powered by a 3V battery with an internal resistance. We calculate the power dissipation of the bulb and the terminal voltage of the battery, unraveling the physics of electrical circuits.

Orbit Altitude: Astronauts Above Planet's Surface

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Embark on a celestial journey! In this video, we calculate the altitude above a distant planet's surface where a starship orbits. Discover how astronauts experience reduced free-fall acceleration and the fascinating dynamics of space travel.

Tree Clearance for Longest Hole-in-One Shot

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Discover the perfect golf shot! We calculate the height of the tallest tree a golf ball must clear to achieve the longest possible hole-in-one. Explore the physics and precision of golf's ultimate achievement.

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Moon vs. Earth Jump: Gravity's Impact on Distance

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Join us in a lunar leap! We estimate how gravity affects jumping distance on the Moon compared to Earth, with the same takeoff speed and angle. Explore the moon's reduced gravity and its impact on human capabilities.

Frictional Force in Crate Motion: Magnitude and Direction

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Explore the fascinating world of friction in motion! In this video, we delve into the concept of frictional forces as we examine a crate being pushed across a factory floor. We'll calculate the magnitude and direction of the frictional force and uncover its role in maintaining constant velocity. Discover the science behind everyday motion.