What is an electromagnet? A. a solenoid with a ferromagnetic core B. a magnet that's electrically pulsed C. a solenoid with no core D. All of the above E. none of the above

In a stadium, fans stand up and sit down to produce a wave across the stadium. This type of wave where the material travels perpendicular to the direction of travel of the the wave. Which type of wave does this describe?

A college dormitory room measures 10 feet wide by 12 feet long by 8 feet high. Weight density of air is 0.07 lbs/ft3. What is the weight of air in it under normal conditions?

Why do we call things the things we do like why do we call it a horse who made the names cause whoever did was really good at this.

How to use Da Vinci flying pedulum clock

You are ice skating on a rink in a friends backyard. you hit a stick that has frozen in the ice, and your skates stop suddenly. your body continues to move forward because of A. Inertia B. Friction C. Gravity D. Speed

A solid metal ball and a hollow plastic ball of the same external radius are released from rest in a large vacuum chamber. When each has fallen 1 m, they both have the same?

Juan is interested in finding out whether hummingbirds are attracted to some flowers more than others. In what order should Juan perform the steps of his experiment?

Will make Brainlest! <3 Metals are considered to be good conductors of heat. How do the specific heat values indicate this?

Which example identifies a change in motion that produces acceleration? choices are: 1. a speed skater moving at a constant speed on a straight track 2. a ball moving at a constant speed around a circular track 3.

Which of the following diagnostic procedures uses ultrasound?