Astronauts on the first trip to mars take along a pendulumthat has a period on earth of 1.50 {\rm s}. the period on mars turns out to be 2.45{\rm s}.what is the free-fall acceleration onmars? gmars= m/s2

3.7 m/s^2

Explanation:

The period of a pendulum is given by:

where L is the length of the pendulum and g is the free-fall acceleration on the planet.

In this problem, we know that the period of the pendulum on Earth is:

while the period of the same pendulum on Mars is

And since the length of the pendulum L does not change, we can write:

where

is the free-fall acceleration on Earth

is the free-fall acceleration on Mars

Re-arranging the equation and substituting numbers, we find:

explanation:

earth's surface is mainly heated by the absorption of infrared radiation from the sun.

evaporation occurs because molecules in liquid water are warmed ( usually by the sun) and vibrate quicker, becoming less dense and rise.

condensation occurs because molecules in water vapor are cooled and therefore vibrate more slowly thus becoming more dense and eventually fall to earth.

lines of equal barometric pressure on a weather map are called: isobars : lines of equal temp on a weather map are called: isotherms.​

v 154.9= 0.9 length length s little over 154.9cm