A physical science textbook has a mass of 2.2 kilograms. What is its weight on Mars? (g.=3.7 N/kg

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

What occurs during a combustion reaction

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