A plane's average speed between two cities is 600 km/h. If the trip takes 2.5 hours, how far does the plane fly?

The only item that exists on the planet in all three states of matter at standard pressure is what

Which of the following statements are true as a block of ice melts? Check all that apply. a. The temperature of the ice/water system remains constant. b. Heat energy leaves the ice/water system. c. Heat energy enters the ice/water system. d.

Which type of reaction is Mg + S → MgS?

A beam of monochromatic light is aimed at a slit of width w and forms a diffraction pattern. In which case is the width of the central band greater? a. When the incident light is blue b. When the incident light is yellow c.

Two straight wires are in parallel and carry electrical currents in opposite directions with the same magnitude of 2.0A. The distance between the two wires 5.0 m m. If one of the wires is infinitely long and the other the wire is 0.

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp

Sodium, atomic number 11, forms an ionic bond with an atom of an unknown element. What is one possible choice for the ther element in the compound?

A ship leaves the island of Guam and sails a distance 255 km at an angle 49.0 o north of west. Part A: In which direction must it now head so that its resultant displacement will be 125 km directly east of Guam?

What is the molecular geometry of a methane (CH4) molecule?

Why do scientist use radioactive decay to figure out how old stuff is