Buzz-off Company believes they have come up with a product that will prevent mosquitoes from biting you. You and a friend volunteer to test their product for the weekend, where you sprayed on the new repellent and your friend did not wear any at all. You both did the same activities at the same time all weekend, but you came back with 27 bites, whereas your friend came back with 13. Who was the control group?

What is the independent variable?

What is the dependent variable?

What are the controlled variables?
What should your conclusion be?

If Buzz-off is really supposed to work, what may have caused these results to occur?

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.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle