What two particles in an atom are equal in number

Calculate the potential difference across a 25-Ohm. resistor if a 0.3-A current is flowing through it. V

Four bricks of length L, identical and uniform, are stacked on top of one another in such a way that part of each extends beyond the one beneath.

1. What are waves, and how do they transfer energy?

Which of the following describes the relationship between frequency and wavelength? As frequency increases, wavelength increases. As frequency decreases, wavelength decreases. As frequency increases, wavelength decreases.

What is the name of a scientist that studies the Movment of living things?

Double the resistance of the resistor by changing it from 10 Ω to 20 Ω. What happens to the current flowing through the circuit?

Who would most likely be required to work with sodium hydroxide? A: a plumber B: a gardener C: a bricklayer D: a mechanic

A roller coaster is entering a vertical loop which has a radius of 25.0 m. If the coaster is traveling at 45.0 m/s as it enters the loop, how much is the centripetal force that you experience? (Assume your mass to be 75.

Which best describes tropical continental climate during the summer? A. clear, dry weather, B. cloudy, wet weather, C. cold, dry weather, D. hot, dry weather

At the beach, describe where or when you would see wave fronts. How are wave fronts useful to surfers?