What force makes a marble role on level ground?

Describe an experiment to determine how the frequency of a vibrating string depends on the length of the string

What is the average mass of an electron? A. 1 amu B. 1,837 amu C. 1/1,837 amu

The study of how the moon causes tides in Earth's oceans represents an intersection of which two fields of science? a. Geology and meteorology b. Allergy and oceanography c. Astronomy & meteorology d. Astronomy & oceanography

Rod A and rod B are cylindrical rods made of the same metal. amd they differ only in size. Rod B has double the length and double the width of rod a.

A boat has a mass of 6800 kg. Its engines generate a drive force of 4100 N due west, while the wind exerts a force of 800 N due east and the water exerts a resistive force of 1200 N due east.

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

If you get something in your eyes in the lab, what is the most important thing to do?