lanzamos una pelota hacia arriba y la recogemos al cabo de 4 segundos. a) Con que velocidad fue lanzada? b) a que altura llega? c) cuanto tiempo tarda en llegar a la altura Máxima?

the answer is d. 4

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laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

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.

higher potential

explanation:

because it is in a high speed so it must move into a of high potential