A scientist tests the water in a local pond and finds that it has a pH of 7.9. What is true about the water sample?

A student is testing her reaction time by trying to keep a light bulb on for exactly 4 seconds by matching a stopwatch. When she turns the light bulb off, the stopwatch reads 4.13 seconds. What is her reaction time?

Dog chases a cat in a circle around the base of a tree. if the velocity of the dog is 0.35 m/s and the radius of the circle is 0.75 m, what is the centripetal acceleration of the dog? 0.16 m/s2 0.47 m/s2 2.14 m/s2 6.25 m/s2

What does a physics professional do?

Witch of the following is not an appropriate unit for power

The atom in the diagram has neutral charge. How many protons does it have

Absolute differences between each observed mass and the accepted value, divided by the accepted value, multiplied by 100%

What forms of energy are produced by a violin

Archimedes' principle can be used to calculate the density of a fluid as well as that of a solid. suppose a chunk of iron with a mass of 390.0 g in air is found to have an apparent mass of 350.5 g when completely submerged in an unknown liquid.

6. What does the slope of a velocity-time graph indicate?

How high was a brick dropped from if if falls in 2.5 seconds?