How dose a greenhouse allow plants to be grown in the cold winter months?

Do you have to keep citing the same source

How much physical activity do children and teens need? A. 60 minutes at least twice a week B. 60 minutes at least five days a week C. 150 minutes a week D. 150 minutes at least five days a week

A sophomore with nothing better to do adds heat to a mass 0.300 kg of ice at 0.0 âc until it is all melted.

What is the difference between distance and displacement?

Which describes the magnetic field that forms when a wire carries an electric current? a. It is in a line perpendicular to the wire. b. It is in a line parallel with the wire. c. It is in a cylinder around the wire. d.

3. In a demonstration learning activity, A. the teacher shows children how something works or how to complete an entire activity. B. each child shows and tells about a favorite toy. C.

A 0.12 kg paper airplane flies in a straight line at a speed of 1.3 m/s. How much kinetic energy does the airplane have?

Each atom is composed of electrons and positive material. The mass of the atom is evenly spread throughout the atom. Neutrons are located in the center of the atom. Positive charge occupies a very small volume in the atom.

A hot-air balloon is ascending at the rate of 14 m/s and is 84 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?

Now assume that the pitcher in Part D throws a 0.145-kgkg baseball parallel to the ground with a speed of 32 m/sm/s in the + x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight line.