System 1 has a large number of particles, moving slowly on average. System 2 has a smaller number of particles, but they are moving faster on average.

Which system has a higher temperature?

a) System 1 has a higher temperature because there are more particles. A greater number of particles have more kinetic energy than a smaller number of particles.

b) System 1 has a higher temperature because the particles are moving slowly. The particles in System 1 have greater kinetic energy than System 2.

c) System 2 has a higher temperature because the particles are moving with greater speed. The particles in System 2 have greater kinetic energy than System 1.

d) There is not enough data to tell. The larger number of particles in System 1 may or may not outweigh the increase in movement in System 2.

2b2t

explanation:

2b2t

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

force tends to be low and long diustance masses are high