A student repeats a reaction several times to test the effects of various changes on the reaction rate. The data table shows the results. How does
increasing the temperature of the system change the reaction rate?

answ675857-233333

explanation:

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

i think it's 35 meters

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.