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:

Psychotherapist

A professional who treats mental health issues by discussing and exploring thoughts, feelings, and behaviors with clients, using various therapeutic techniques.

Own Problems

The personal challenges or difficulties an individual faces, distinct and separate from those of others.

Counterconditioning

A behavior therapy technique where a negative or unwanted response to a stimulus is replaced with a positive one through conditioning.

Conditioned Stimulus

A previously neutral stimulus that, after association with an unconditioned stimulus, elicits a conditioned response.