Which is an example of a chemical reaction?

A: paper folded into tiny pieces

B: paper burned and turned into smoke

C: paper soaked in water

D: paper shredded and turned into pulp

Which object has a varying speed? a bird flying at 10 m/s for 10 seconds a car slowing from 60 m/s to 0 m/s a car traveling the speed limit a fish moving at 2 m/s for 5 minutes

What wave travels through water and air?

Which of the following is an example of homeostasis? O A. If you are sleepy, you can drink coffee to stay awake. O B. When you drink a lot of water, you urinate (pee) more than usual O C.

How are fossil fuels used to generate electrical energy?

Rank the following compounds in order of decreasing vapor pressure. Rank from highest to lowest vapor pressure

A large volume of air moving across the surface of the earth know as ...

A student rapidly rubs the palms of both hands together, after eating lunch. Which sequence correctly describes the energy transformations that occur? a. chemical mechanical heat b. mechanical heat chemical c. heat mechanical chemical d.

A 1.00-kg object A is connected with a massless string across a massless, frictionless pulley to a 2.00-kg object B. The smaller object rests on an inclined plane which is tilted at an angle of θ = 30.0° a.

Which of the following procedures was done to minimize human error? We let the weight swing 25 times and divided by 25 to get the avg period of one oscillation Why did we plot T2 vs L instead of just T vs L?

What percentage of the earth's surface is covered in water