Physics

Physics, 15.10.2019 03:50, darthleano3355

When a motor is turned on, electrical energy is transformed to mechanical energy plus heat energy. true or false?

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Physics, 18.07.2019 06:10, ayandjay01

Physics question, require assistance. determine the type of energy transfer when the motor of a fan is turned on. a electrical energy in converted to mechanical energy b electrical energy is converted to potential energy c electrical energy is converted to heat and mechanical energy d electrical energy is converted to wind energy what evidence for the transformation of energy does the running fan produce? select all that apply. a the blades of the fan are spinning. b light is produced. c an air flow is felt. d sparks can be seen. e the fan warms up. what is true of the efficiency of this motor? a it is more than 100% efficient. b it is 100% efficient. c it is less than 100% efficient. d none of the above

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Chemistry, 30.07.2019 16:30, iamabouttofail

Acircuit is shown in the picture above. energy is transferred first from the battery to the circuit wire and then from the circuit wire to the light. what energy transformations occur between these two transfers? a. energy is transformed first from chemical energy to light and heat energy and then from light and heat energy to electrical energy. b. energy is transformed first from mechanical energy to chemical energy and then from chemical energy to light and heat energy. c. energy is transformed first from chemical energy to mechanical energy and then from mechanical energy to light and heat energy. d. energy is transformed first from chemical energy to electrical energy and then from electrical energy to light and heat energy.

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English, 29.09.2019 00:30, spencertodd742

Plz me ill give you all my points ceiling fans are often used in homes to increase air circulation. when a ceiling fan is turned on, what type of energy transformation occurs? a. electrical energy is transformed into chemical energy. b. thermal energy is transformed into electrical energy. c. electrical energy is transformed into mechanical energy. d. mechanical energy is transformed into thermal energy.

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Chemistry, 30.10.2019 18:31, jazzy4211

Need asap a. is an indicator of the amount of thermal energy that an object possesses. b. only pertains to heat transfer, not thermal energy. c. is exactly the same as thermal energy. d. is not related to thermal energy. 1. an ice cube that is dropped into a glass of water melts because a. the ice is denser than the water. b. the water is denser than the ice. c. the water is liquid, and the ice is solid. d. heat energy moves from the water to the ice. 2.what type of energy transformation occurs when a light bulb is turned on? a. mechanical energy is converted into kinetic energy. b. electrical energy is transformed into heat and mechanical energy. c. electrical energy is transformed into heat and light energy. d. potential energy is converted into kinetic energy.

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