What can you use to test substancea for their pH value if you dont have a strip of litmus paper handy?

Karen has a mass of 51.9 kg as she rides the up escalator at Woodley Park Station of the Washington D. C. Metro. Karen rode a distance of 63.1 m, the longest escalator in the free world. The acceleration of gravity is 9.8 m/s 2.

A vicious dog is pulling his owner with 150N of force. If the owner is dragged 40 meters, how much work did the dog do?

ions are atoms or groups of atoms that have a positive or negative charge. which of the following statements is true of ions?

What kind of pressure are expressed in inches of water column?

Which condition causes ocean salinity to decrease? A. low levels of evaportation B. thawing of polar ice caps C. ocean water flowing into rivers D. low levels of precipitation

A police officer's radar gun emits radio waves at a frequency of 10.7 GHz10.7 GHz. What is the difference in the frequencies reflected back to the radar gun by a car traveling at the 75 mph75 mph speed limit and a car travelling 9 mph9 mph faster?

Function of a battery

When an electric current runs through a wire, a magnetic field is induced ... O Around the wire O Parallel to the wire O Under the wire O Through the wire

A wheel of diameter 8.0 cm has a cord of length 6.0 m wound around its periphery. Starting from rest, the wheel is given a constant angular acceleration of 3.0 rad/s2. How long will it take the cord to unwind?

An extensive continuous mass of ice covering a continental scale is known as