an arrow is aimed horizontally directly at the center of a target 20 m away. the arrow hits 0.050 m below the center of the target. neglecting air resistance what was the initial speed of the air?

There are weak or strong attractive forces between atoms of liquids with a high viscosity

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples

Using a caesar cypher with an offset of three characters (a -> d, b -> e, z -> c), what would be the correct cypher text for the plain text "attack at dawn"?