Why can scientists ignore the forces of attraction between particles in a gas under ordinary conditions? they are too weak to have an effect at great distances between gas particles. they do not exist for particles that have kinetic energy. they are too weak to have an effect at the temperatures at which most gases exist.

They are too weak to have an effect at the temperatures at which most gases exist.

They are too weak to have an affect at the temperatures at which most gases exists.

Explanation:

Scientist and researchers can ignore the forces of attraction between the particles in a gas under ordinary normal conditions because these forces between the particles are too weak to have an affect at the temperature at which most of the gases exists. Most of the gas exists at a very high temperature and the forces of attraction between the molecules of the gases are very weak as these molecules are loosely bounded to each other.

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.

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it