How many groups is matter organized into

If you cannot get a chair to move across the floor, it is because ___ friction opposes your push. a. sliding b. static c. rolling d. fluid

A person of mass m stands on roller skates facing a wall. After pushing against the wall with a constant force F he moves away, reaching speed v after a distance d. What is the work done by F?

Could someone explain to me how to work this? You can use random numbers. I would just like to know how to figure out the correct answer. The geese fly 4.5 km due west, then turn toward the north by 50 ∘ and fly another 4.5 km.

Debris from the solar system strikes the Earth as which of the following

Rutherford's α-scattering experiment showed that most α particles directed toward a thin metallic foil passed through with only slight deviations. From this evidence we can conclude that 1. the foil was too thin. 2.

At room temperature, most of the atoms of atomic hydrogen contain electrons that are in the excited states. A tube is filled with atomic hydrogen.

Acharged particle moving through a magnetic field at right angles to the field with a speed of 36.2 m/s experiences a magnetic force of 7.38x104 N.

What experimental evidence supports the idea that conducting materials have freely moving electrically charged particles inside them

Jonathan has six strings that are the same thickness and are all the same material. He cuts the strings to different lengths and pulls so that they all have the same tightness.

A rose has a phenotype ratio of 3:1 where red roses are dominant over white roses. Out of a total of 4 roses, how many of the roses are red? 1 2 3 4