Shane requires exactly 50 seconds to run 2 rounds around his school field. Assuming he maintains a constant speed throughout, what is his.
a. Period
b. Frequency

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.