A Child Is Trying to Throw a Ball Over a Fence.She

question 12

Multiple Choice

A child is trying to throw a ball over a fence.She gives the ball an initial speed of 8.0 m/s at an angle of 40° above the horizontal.The ball leaves her hand 1.0 m above the ground and the fence is 2.0 m high.The ball just clears the fence while still traveling upwards and experiences no significant air resistance.How far is the child from the fence?

• A)0.73 m
• B)1.6 m
• C)2.7 m
• D)3.8 m
• E)7.5 m

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Definitions:

Type I Error

A statistical error occurring when a true null hypothesis is incorrectly rejected.

Type II Error

The error that occurs when a false null hypothesis is not rejected, meaning a true effect is missed.

Collecting Data

The process of gathering and measuring information on variables of interest in an systematic fashion that enables one to answer stated research questions, test hypotheses, and evaluate outcomes.

Effect Size

A metric that quantifies the extent of an event or the force of association among variables.