: In order to measure the body mass of an astronaut in space, a special chair attached to springs is used. The frequency of the oscillation of the astronaut is measured and from this, the mass is computed. Suppose that the chair has been calibrated as follows: the chair itself has mass of 20kg and an additional 25kg is placed in the chair. The resulting oscillation has period of 1.30 seconds. What is the mass of an astronaut if the period of oscillation is 1.75 seconds

Ithink the answers is b i hope it my friend message me if i’m wrong and i’ll change my answer and fix it for you

That depends on what kind of environ meant it is in  in space it has the same force that was applied when the velocity was gained

Answer;

hot magma rises and pushes up toward the lithosphere, and as it cools it cycles back down toward the core to be heated again.

explanation; convection currents are the circular pathways taken by a fluid that enhances heat transfer by the process known as convection which occurs in fluids.convection currents transfer heat from one place to another by mass motion of a fluid. earth mantle is in a semi-liquid state and behaves like any other fluid, rising up from the bottom of the mantle after becoming hotter and less dense from heat of the earth's core, as the rock loses heat into the earth's crust it becomes cooler and more dense, then sinking back down to the core, then repeating the cycle.

The waves slow downn