Two waves, each with intensity 40 db, interfere constructively. what is the intensity of the combined waves, in db?

How is velocity of a body in uniform circular motion related to its time period

Suppose a friend tells you scientific theory is guesswork and is not supported by evidence

What happens when an object with a higher density is placed in a container with a lower density liquid?

How to easily explain the quantum state?

Pressure of gas is 13.6 cm of hg what does it means

Jake designed an experiment to demonstrate a solar eclipse. The steps of the experiment are listed below. Place a light bulb on a stand. Stick a pencil into a small styrofoam ball. Switch on the light bulb and darken the room.

A boat sails an average speed of 20 km/h for 2 days. How far does the boat travel?

In an energy pyramid, the total energy available for consumption from one trophic level to the next one it is A. reduced B. Conserved C. multiplied D. Evenly distributed

Astronauts in orbit are not truly weightless.

Which of the following statements is true regarding the nature of light? Straight line motion is a particle property of light. Straight line motion is a wave property of light. Straight line motion is not a property of light.