AThe proper pH range for a swimming pool is between 7.2 and 7.8. Most pools use two substances, Na2CO3and HCL, to maintain this range. How would you adjust the pH if you found it was 8.2? 6.9?

Despite the attempts of the US, Egypt and __, in 1978 to achieve peace in the Middle East, which region continues to be plagued by conflict and strife?

A 50.0-g super ball traveling at 27.0 m/s bounces off a brick wall and rebounds at 16.0 m/s. a high-speed camera records this event. if the ball is in contact with the wall for 3.

Read the scenario. A car moves 30 mi/h to the north. Every second, the velocity increases by 3 mi/h. Which option represents the acceleration as a vector quantity? 3 mi/h/s 30 mi/h 30 mi/h north 3 mi/h/s north

Compressed gases aren't ideal. Let's consider a gas that's non-ideal only because the volume available to each of the N molecules is reduced because each other molecule occupies volume v. Instead of pV=NkT, we get: p (V-Nb) = NkT. Let b=1.

Electric current is ...

The force on a current-carrying wire is a maximum when the current is moving parallel to a magnetic field. true or false

In 1999, what percentage of 36-month-old toddlers had been toilet trained? 20 percent 40 percent 60 percent 80 percent

Tarzan, in one tree, sights jane in another tree. he grabs the end of a vine with length 20 m that makes an angle of 45â with the vertical, steps off his tree limb, and swings down and then up to jane’s open arms.

Applying the Law of Conservation of Momentum Train car A is at rest when it is hit by train car B. The two cars, which have the same mass, are stuck together and move off after the collision.

Each of the objects above is composed of identical thin sticks of uniformly distributed mass 5.51 kg and length 0.737 m.