A Ball Is Thrown Upwards and Returns to the Same

question 34

Multiple Choice

A ball is thrown upwards and returns to the same position.Compared with its original speed after release,its speed when it returns is about

• A)half as much.
• B)the same.
• C)twice as much.
• D)four times as much.

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Definitions:

Water Molecules

The smallest unit of water (H2O), consisting of two hydrogen atoms covalently bonded to one oxygen atom, essential for most forms of life on Earth.

Hydrogen Bonding

A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.

Ice

Water frozen into a solid state, typically at or below 0°C (32°F).

Water Boils

The transformation of water from liquid to gas phase, occurring at 100°C (212°F) at sea level.