What is a device made by joining two different materials to form a circuit that produces an electric current?

a. convertor

b. resistor

c. semiconductor

d. thermocouple

What is the lupac name H3C - CHT the H₂ - CH - CH2 CH₂ CH₂ CH3

If there is a 2kg ball and a 5kg ball with the same kinetic energy which one will be moving faster?

The integrated circuit and its ability to put a great deal of information on a small chip was the beginning of the idea of computers for personal use.

If a sugar has 11 oxygen atoms, how many hydrogen atoms does it contain?

How can wind put off fire?

What is the energy equivalent of 5.0 kg of mass? be sure to show all work to support your answer?

An ant carries food at a speed of 1 cm/s. How long will it take the ant to carry a cookie crumb from the kitchen table to the ant hill, a distance of 50 m? Express your answer in seconds, minutes and hours.

What must you know in order to determine the gravitational force between two objects?

When seen from an airplane, a rainbow sometimes forms a complete circle. When this happens, the plane's shadow is a. in the center of the rainbow. b. totally outside the rainbow. c. in the upper part of the rainbow. d. Nowhere. There is no shadow. e.

1. a substance with a pH of 3 2. a substance with a pH of 10 3. a substance with a pH of 7 4. an indicator 5. a scale that represents the concentration of H30+, 0-14 A.) phenolphthalein B.) base C.) pH scale D.) neutral E.) acid