Two clay balls, each with a mass of 0.9kg, are attached to strings 1 meter long. these two strings are attached to a hook in the ceiling.

Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. the winds blow from west to east in jet streams but the flow often shifts to the north and south. jet streams follow the boundaries between hot and cold air. the earth's rotation is responsible for the jet stream as well.

True.it is better to buy a washer with a higher efficiency rating

Answer the above statement is ( false );