When all parts of a circuit are composed of conducting materials, the circuit is said to be
a. parallel.
b. open.
c. shorted.
d. closed.

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

Phase changes are chemical changes. true or false

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.