The acceleration for the car with one washer is
m/s2
the acceleration for the car with two washers is
calculate the acceleration of the car for each set of
conditions using the formula
a = (v2 - 04)/(t2-t1)
where v2 and vy are the first and second velocities and
t, and ty are the average times the car took to reach the
0.25 and the 0.50 meter marks. acceleration is reported
in m/s2 record these accelerations, to two decimal
places in table e
m/s2
the acceleration for the car with three washers is
5 m/s2
the acceleration for the car with four washers is
m/s2

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Wut 

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.