What is the maximum possible speed of an impact on the surface of earth for a faraway body initially at rest that falls to earth by virtue of earth's gravity only?

An automobile battery is an example of a a. wet cell. b. dry cell. c. thermocouple. d. fuse.

The potential energy of an object is equal to the work required to lift it into position. True or False?

Which of the following is the brightness of a star as we see if from Earth? A. absolute magnitude B. parallax magnitude C. apparent magnitude

Which of the following describes a comet? a. Large objects (> 10 m) in space originating from a region between Jupiter and Mars b. Icy objects that form a tail as they come close to the Sun c. Small objects that burn up in Earth's atmosphere d.

When a charged particle is moved along an electric field line, Group of answer choices the voltage changes, but there is no change in electrical potential energy.

A construction team gives an estimate of three months to repave a large stretch of a very busy road. The government responds that it's too much inconvenience to have this busy road obstructed for three months, so the job must be completed in one

Determine the time needed for the load at b to attain a speed of 10 m/s, starting from rest.

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?