Bachillerato

Taller Exam 3 Fisi 205 Prof: Santander Nieto Ramos, PhD. To solve the following exercises 1. Suppose a planet is discovered that has the same totalmass as the Earth, but half its radius. a) Is the acceleration due to gravity on this planet more than, less than, or the same as the accelerationdue to gravity on the Earth? Explain. b) Calculate the acceleration due to gravity on this planet.

2. A projectile launched vertically from thesurface of the Moon rises to an altitude of 365 km. What was the projectile’s initial speed?

3. Find the escape velocity for a) Mercury and b) Venus.4. If a projectiles is launched vertically from the Earth with a speed equal to the escape speed, how high above the Earth’s surface is it whenits speed is half the escape speed?

5. A projectiles is launched vertically from the surface of the Moon with an initial speed of 1050 m/s. At whataltitude is the projectile’s speed one-half its initial value?

6. The End of the Lunar Module. On Apollo Moon missions, the lunar module wouldblast off from the Moon’s surface and dock with the command module in lunar orbit. After docking, the lunar module would be jettisoned and allowed tocrash back onto the lunar surface. Seismometers placed on the Moon’s surface by the astronauts would then pick up the resulting seismic waves. Find theimpact speed of the lunar module, given that it is jettisoned from an orbit 110 km above the lunar surface moving with a speed of 1630 m/s.