How can you tell talc and corundum apart

Describe in one complete paragraph how oil and natural gas compare in terms of predicted supply and carbon dioxide emissions.

Julia rides her horse 12 miles in 45 minutes. What is her average speed in mi/min?

What is the potential energy of an apple that has a mass of 0.12 kg being held 0.8 meters above the ground?

What is Newtons third law

2. A biologist measures the speed of a swimming amoeba. The amoeba covers a distance of 17.36 microns in 30 seconds.

A tube, open at only one end, is cut into two shorter (nonequal) lengths. The piece that is open at both ends has a fundamental frequency of 422 Hz, while the piece open only at one end has a fundamental frequency of 666 Hz.

Table tennis the path of a table-tennis ball after being hit and hitting the surface of the table can be modeled by the function h=-4.9t (t-0.42) where h is the height in meters above the table and t is the time in seconds.

A coat rack weighs 65.0 lbs when it is filled with winter coats and 40.0 lbs when it is empty. The base of the coat rack has an area of 452.4 in2.

An initially stationary object experiences an acceleration of 6 m/s2 for a time of 15 s. How far will it travel during that time?

How was helium first discovered? mining of the radioactive element uranium using spectral analysis of the Suns' emission spectra o hubble obtaining samples from explosions off the surface of the sun deep sea mining off the coast of Texas