A block of mass m = 30 kg and speed V is behind a block of mass M = 80 kg and speed of 0.5 m/s as shown in the figure. The surface is frictionless and the blocks collide and couple. After the collision, the blocks have a common speed of 0.9 m/s. What is the initial speed V of the 30-kg block?

The reading of a suspect’s Miranda warnings occurs during the initial hearing.

Life course theories of criminal behavior attempt to identify important developmental pathways to criminal behavior.

Which is one of the historical periods of American policing?

A civilian review board is a citizens’ committee formed to investigate complaints against the police.

A civilian review board is a citizens’ committee formed to investigate complaints against the police.

Anyone in the United States, regardless of status or circumstance, may be drawn into the criminal justice system.

Which area of law enforcement certification involves completing coursework? 

Which of the following is an example of a property crime?

Accidents are the clearest examples of which legal principle?