A 10-G Bullet Moving Horizontally with a Speed of 2

question 59

Multiple Choice

A 10-g bullet moving horizontally with a speed of 2.0 km/s strikes and passes through a 4.0-kg block moving with a speed of 4.2 m/s in the opposite direction on a horizontal frictionless surface. If the block is brought to rest by the collision, what is the kinetic energy of the bullet as it emerges from the block?

• A) 0.51 kJ
• B) 0.29 kJ
• C) 0.80 kJ
• D) 0.13 kJ
• E) 20 kJ

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Definitions:

Code Switching

The practice of alternating between two or more languages or varieties of language in conversation.

Example

Used to illustrate a specific case or instance that demonstrates a general rule, concept, or situation.

Displacement

In linguistics, the ability to talk about things that are not present in time or space. In psychology, it refers to the transfer of emotions from a particular target to another.

Language

A system of communication used by a particular community or country, consisting of written, spoken, or gestural symbols that are conventionally understood.