A cd player uses a ___ to convert info to an electrical signal

A. Neon light

B. Sodium vapor light

C. Laser

How do transformers work in electric power houses

Suppose you increase your walking speed from 5 m/s to 14 m/s in a period of 3 s. What is your acceleration

Would you choose to have your genome sequenced to screen for diseases

An object being swung in circles on the end of rope is an example of projectile motion. a. true b. false

In a Do‑Nothing Machine, two sliders are confined to perpendicular channels and are connected by a rod. The rod can be rotated, causing the sliders to move back and forth in their respective channels.

A piece of plastic tape coated with iron oxide is magnet - ized more in some parts than in others. When the tape is moved past a small coil of wire, what happens in the coil? What is a practical application of this?

As earths plates move apart at some boundaries, they collide at others, forming

Potential energy that depends on height is called a. kinetic energy. b. gravitational potential energy. c. elastic potential energy. d. mechanical energy.

A steel railroad track has a length of 40 m when the temperature is - 5 ◦C. What is the increase in the length of the rail on a hot day when the temperature is 35 ◦C? The linear expansion coefficient of steel is 11 * 10-6 (◦C) - 1.

The seasons of the Year result from Earth's movement or ___ around the Sun