A pool can be filled by a pipe in 3 hours. it takes 3 times as long for another pipe to empty the pool. how long will it take to fill the pool if both pipes are open?

Bacteria is found in

Which of the following is equivalent to 2,100 grams? A. 21 kilograms B. 2.1 milligrams C. 2.1 centigrams D. 21,000 decigrams

You are on a ParKour course. First you climb a angled wall up 9.5 meters. They you shimmy along the edge of a 3.5 meter long wall. Lastly you traverse 15 meters of obstacles to reach the end of the course. The trip takes 43 seconds.

1. Find an example of electrical energy being converted to light energy. 2. Find an example of potential energy being converted to kinetic/mechanical energy. 3. Find an example of chemical energy being converted to sound energy. 4.

What are the advantages and disadvantages for methods used to reduce the impact of human activity?

Which describes why the sun is a renewable resource? The sun creates biomass. The sun is continuously releasing energy. The sun does not cause pollution.

Which statement best describes how waves carry energy? A. Energy moves from one place to another through the wave. B. Energy increases as it moves through the wave. C. Energy is completely consumed by the beginning of the wave. D.

Zach is making a round trip going from home to work. To get to her work she goes 30 m/s and then to get back home she goes 50 m/s. What is the velocityof Zach for the entire round trip? a. 0 m/s b.-20 m/s c. 80 m/s

S1. Use information from the appendices to predict whether diamond or graphite is the stable form of carbon at 1 atm pressure. If the density of graphite is 2.26 g/cm3 and that of diamond is 3.

The speedometer on a car actually measures the rotational speed of the axle and converts that to the linear speed of the car, assuming the car's tires diameter is 0.62 m. What is the rotational speed of the axle when the car is traveling 20 m/s?