Which can a drop of liquid mercury can be described as?

A. A pure substance and a compound

B. An impure substance that is reactive

C. An impure substance that is unreactive

D. Pure substance and an element

What is Parabolic flight

The kinetic energy of a baseball is doubled by changing the speed of the baseball. By what factor has its speed changed?

A circular coil has a 10.0 cm radius and consists of 30.0 closely wound turns of wire. an externally produced magnetic field of magnitude 2.60 mt is perpendicular to the coil.

Ms. Mayo challenged her students to build a pendulum that would hit a block of wood and move it. The group that moved the block of wood the farthest would win a prize. One group's experimental data is shown above. Ms.

A hollow sphere of radius 1.88 m is in a region where the electric field is radial and directed toward the center of the sphere. If the magnitude of the field at the surface of the sphere is 22.

Why is a rock salt crystal likely to shatter when struck

Find the speed required to throw a ball straight up and have it return 6 seconds later. neglect air resistance. how high does the ball go?

Do all electromagnetic waves travel at the speed of light, carry energy, and travel through a vacuum?

The voltage across the primary winding is 350,000 V, and the voltage across the secondary winding is 17,500 V. If the secondary winding has 600 coils, how many coils are in the primary winding? 30 583 12000 332500

A 200 watt t. v. is used for 20 hours in a week. If it is used for four weeks then what is cost of electricity if rate is 5rs/kwh