. What is the mass of an object if it is pulled by a 5 Newton force and it accelerates at a rate of 20 m/s/s? Please help ASAP

In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?

The mantle is made up of which structural zones?

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