Cho mạch điện như hình vẽ R1 song song R2.R1=200ôm R2=300 ôm R3=100 ôm a. tính điện trở tương đương của đoạn mạch
b. tính cường độ dòng điện qua AB
C. tính điện năng tiêu thụ của AB trong tg 1h20p

chemical properties of thing

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular