Timy wakes up at 7:00 in the morning, by his alarm clock. What kind of electrical energy is being used

Sound energy via loud speaker

Explanation:

When electrical energy is converted into sound energy, it through a device known as loud speaker. This device is composed of a coil, circular shaped permanent magnet and diaphragm. When alternating voltage is applied across the coil it induces magnetic field in its vicinity and interact with the permanent magnet. The sound is waking Timy and thus the electrical energy is being converted to sound energy.

Sound and Noise

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find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2