Can you find opals in stagties caves where water been flowing for thousands of years

What happens when a substance undergoes a physical change? A: Some physical properties change, but the substance keeps its identity. B: No physical properties change, and the substance keeps its identity.

If the time is 0.2 seconds and the speed is 1500m/s what is the distance

What device is used to measure the current in a circuit

Centrifugal force increases with

Which of the following are conductors

You touch a downed power line covered or bare, what's the likely outcome?

A water wave has a wavelength of 204 m and a frequency of 0.5 Hz. How far does it travel in 1 s?

An air-core solenoid consists of 200 turns of wire wound on a form that is 71 cm long and has a inner diameter of 6 cm. A current of 22 A is established in this solenoid.

A thermometer measures its own temperature? What does it mean?

How do you find momentum