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Back-of-the-Envelope Calculations: Spacecraft Acceleration part of Quantitative Skills:Activity Collection
Barb Tewksbury, Hamilton College
Question Suppose someone offered you a ride to the nearest star in a new spacecraft that could travel at half the speed of light, or about 150,000 km/second. In order to reach such a cruising speed, you and the ...

Back-of-the-Envelope Calculations: Velocity of Asteroids part of Quantitative Skills:Activity Collection
Barb Tewksbury, Hamilton College
Question Asteroids zip through space at truly astounding velocities. Let's try to put that into perspective. It took the Apollo astronauts about 3 days to travel from the Earth to the Moon. a) If you could ...

Back-of-the-Envelope Calculations: The Distance Radio Waves Have Traveled part of Quantitative Skills:Activity Collection
Barb Tewksbury, Hamilton College
Question We have been broadcasting radio waves in all directions since the development of radio and television stations. How far could you be from the Earth and detect the faint signals of an early Star Trek ...

Back-of-the-Envelope Calculations: Comparing Jupiter with Earth part of Quantitative Skills:Activity Collection
Barb Tewksbury, Hamilton College
Question Below, you'll see a drawing of Jupiter showing the Great Red Spot, as well as several of the dark scars, like enormous black eyes, left as a result of the impact of fragments of the comet ...

Back-of-the-Envelope Calculations: Surface Area of the Moon vs. Earth part of Quantitative Skills:Activity Collection
Barb Tewksbury, Hamilton College
Question If you could wrap the Moon in a gigantic cloth and then unwrap the cloth and spread it out on the Earth, how much of the Earth's surface would it cover?

Back-of-the-Envelope Calculations: Volume of the Earth and Sun part of Quantitative Skills:Activity Collection
Barb Tewksbury, Hamilton College
Question Suppose you and your friends wanted to make a scale model of the Earth and the Sun. You start by cutting a one-inch cube of Play-Doh to represent the volume of the Earth. - How many one-inch Play-Doh cubes ...

Back-of-the-Envelope Calculations: Height of the Himalayas part of Quantitative Skills:Activity Collection
Barb Tewksbury, Hamilton College

Back-of-the-Envelope Calculations: Depth of Buried Metamorphic Rock part of Quantitative Skills:Activity Collection
Barb Tewksbury, Hamilton College
Question In many high-grade metamorphic belts around the world, rocks were buried 20-30 km beneath the surface during deformation and metamorphism. How deep is that relative to the cruising altitude of a typical ...

Back-of-the-Envelope Calculations: Size of Olympus Mons part of Quantitative Skills:Activity Collection
Barb Tewksbury, Hamilton College
Question A picture-perfect strato-volcano such as Fujiyama in Japan is what comes to mind when most people think of a volcano. Mt. Fuji is an imposing volcanic construct, rising from nearly sea level to a summit at ...

Back-of-the-Envelope Calculations: Position and Dimensions of the Moon part of Quantitative Skills:Activity Collection
Barb Tewksbury, Hamilton College
Question Suppose you could scale the Earth down to the size of your head. At that scale, how big would the Moon be, and how far away would it be from your head?



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