Which of the following would increase the strength of an electromagnet?

Matter is classified by its physical and chemical properties. Which is a description of the physical properties of matter? Physical properties cannot be measured or observed without changing the composition of the substance.

A steel safe with mass M falls onto a concrete floor. Just before hitting the floor, its speed is vi. It hits the floor without rebounding, and ends up being d shorter than before.

Andrew hears the sound of the firing of a distant cannon 7.33 s after seeing the flash. How far is Andrew from the cannon? The speed of sound is 343 m/s.

If you turn your left glove inside out, it will fit your right hand true or false

How does respiration differ from breathing

Which is a true statement about waves? A They always travel in every direction at the same time. B. They travel at different speeds through different materials. c. They cannot travel through liquids or solids. D.

What is s the best description of the constructive interference of light? A. two waves have the same direction of displacement. B. two waves have displacement in opposite directions. C. a longitudinal wave meets a transverse light wave D.

1875 kg car is traveling at 22 m/s. It's momentum is?

Hot air balloon rises because a) molecules become lighter when heated b) molecules move faster and farther apart when heated c) molecules are less attracted by gravity when heated d) molecules become charged and repel each other when heated

If the diameter of the space station is 730 m, how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?