In the presence of air resistance, which will hit the ground first if dropped from the same height, a feather or a brick?

Is a plasma fluid? explain your answer

How much force is needed to accelerate a 5-kg object at 4 m/s2

The Statue of Liberty is made out of copper and was once shiny and copper-colored. Over the years, the copper has gone through a process called oxidation, where it has changed into a new material.

The speed of light in a vacuum is 2.998Ã108 m/s. calculate its speed in miles per hour (miles/h).

When the wind kicks up dust and sand, the dust grains are charged. The small grains tend to get a negative charge, and the large grains a positive charge. The small grains are lifted higher by the wind.?

Two electrons are 2.3nm apart. What is the force between two electrons?

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?