Need will give brainliest.

1. a 2-kg toy car accelerates from 0 to 5 m/s.

a. 25 joules of work is done by the object.

b. 25 joules of work is done on the object.

c. 75 joules of work is done by the car.

d. 75 joules of work is done on the car.

e. no work is done on or by the object.

A90db sound wave strikes an eardrum whose area is 5.0×10^-5m^2. how much energy is absorbed by the eardrum per second

Asign is hung between two cables as illustrated below. if the sign weighs 350 n, what is the tension (in n) in each cable?

Acertain half-reaction has a standard reduction potential e_red^0 = -0.94 v. an engineer proposes using this half-reaction at the cathode of a galvanic cell that e must provide at least 1.00 v of electrical power. the cell will operate under standard conditions. a. is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have? b. is there a maximum standard reduction potential that the half-reaction used at the anode of this cell can have?