<span>Plate tectonics is the theory that the earth's crust is broken up into plates
that float on top of a hotter and more fluid layer below. Evidence to
support this theory has been uncovered through the study of the earth's
past magnetic field, known as paleomagnetism.</span>
Answer:
8451.62109367671 Newtons
Explanation:


It is known that

So,

The force in Newtons is 8451.6210936765 Newtons
Its would be a radio. because it is the only electrical one out of the choices
Answer:
Ratio of length will be 
Explanation:
We have given time period of the pendulum when length is
is 
And when length is
time period 
We know that time period is given by

So
----eqn 1
And
-------eqn 2
Dividing eqn 2 by eqn 1

Squaring both side

Solid, Malleable, and it reflects light and heat. Those are (some) physical properties.