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

The distance from earth to teh sun usb approxximately 93 million miles. a scientist would write that number as

Electrical energy is produced by power plants. Then, it is transferred to our homes through wires. What happens to the electrical energy when it passes through a household device such as a blender or a toaster? A.

What does the slope of a Position vs. Time graph represent?

What part of an atom is responsible for producing magnetic fields

For the reaction shown below, which statement is correct? Ba (OH) 2 + 8H20 + 2NH4NO3 + heat?10H2O + 2NH3 + Ba (NO3) 2 A. The products contain more energy. B. The reactants contain more energy. C.

A 98.1 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.69 rad/s. A monkey drops a 9.29 kg bunch of bananas vertically onto the platform.

7. A type of non-renewable energy would be: O wind O petroleum O water solar

A refrigerator is a system. The energy input into the refrigerator system (in the form of electricity) is the same as the amount of energy output from the system. Which of the following best describes the energy output of the system?

A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.

3. Calculate the amount of current through a 45-watt light bulb that is connected to a 120-volt circuit in your home.