The speed of sound will be different if which of the following happens?

-The sound travels through different materials.

-The sound gets louder and louder.

-The source of the sound is moving.

-The source of the sound is heated.

Acceleration directed toward the center of a circular path that produces uniform circular motion is

If a stone with an original volcity of 0 is falling from the ledge and takes 8 seconds to hit the ground what is the final volcity of the stone

Number of electrons in outer ring for phosphorus

The element aluminum has an atomic number of 13. How many protons are in the nucleus of an aluminum atom? How many electrons does an aluminum atom have?

Explain the difference between the precision and accuracy of an experiment.

A 231-ω and a 206-ω resistor are connected in series across an unspecified power supply. if the current through the 231-ω resistor is 0.39 a, what is the exact current (in a. through the 206-ω resistor? do not include units with your answer.

What is it called when you connect an object to earth with a conductor

Why is venus the hottest planet in the solar system

Which of the following is an example of an electromagnetic wave? A. ripples on a lake B. the honking of a car horn C. the light from a neon sign D. aftershocks from an earthquake

How fast can we travel in space with current technology?