A moving ball rolls into a stationary ball. the total momentum of both balls after the collision will be

Which statements describe the characteristics of a magnet? Select four options. A magnet attracts objects containing iron. A magnet attracts objects containing aluminum. A magnet repels other magnets. A magnet attracts other magnets.

Two mechanical waves intersect and produce the straight line seen here. What must be true about the amplitude of both waves? A) They are equal. B) They are summative. C) They are equal and opposite.

A light bulb uses 0.5 amperes from a source of 120 volts. How much power is used by the bulb?

In an experiment to create a pendulum, each member of the group measured the length of the string to be a slightly different value. How do we describe these small differences when reporting the length?

If you make multiple measurements of your height, you are likely to find that the results vary by nearly half an inch in either direction due to measurement error and actual variations in height.

A tea kettle is warmed on an electric stove. After a while, water vapor builds inside the kettle and causes a whistle in the lid to make a sound. How does this demonstrates the first law of thermodynamics?

A harmonic oscillator is described by the function x (t) 5 (0.200 m) cos (0.350t). Find the oscillator's (a) maximum velocity and (b) maximum acceleration. Find the oscillator's (c) position, (d) velocity, and (e) acceleration when t 5 2.00 s

A database that is flexible and easy to use was recently installed. the data is stored in rows and columns much like a spreadsheet. what type of database must have been installed?

What did johannes kepler contribute to the study of planets

Baseboard heaters are basically electric resistance heaters and are frequently used in space heating. A homeowner claims that her 5-year-old baseboard heaters have a conversion efficiency of 100%.