Laura sees a horse pulling a buggy. she wonders how it can accelerate if the action of the horse pulling the cart would causes
an equal and opposite reaction of the cart pulling on the horse. which explanation best answers her question?
the net forces exerted on the the horse and cart are the same, but the action force is larger
the net forces exerted on the the horse and cart are the same, but they are in the same direction
the net forces exerted on the the horse and cart are not the same, so the two forces cancel out
the net forces exerted on the the horse and cart are not the same, so they are not balanced forces

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

trig 15.3 cos

this is poiselle's equation from fluid mechanic in physics. mech eng

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.