...Measuring Speed Introduction: Speed is defined as the rate of change of position or the rate of motion. A rate is the ratio between two different quantities. Motion is described with respect to, or relative to, another object called a reference point or frame of reference. Usually the Earth is considered to be stationary and is often the frame of reference. Speed is a relative quantity that depends upon the frame of reference -- how an object is observed and measured. Average speed is total distance traveled divided by the total time traveled. average speed = total distance or speed = d where d is distance and t is time total time traveled t Another way to measure speed is called instantaneous speed. This type is one of the most common ways we measure speed. Instantaneous speed is the measurement of speed at a particular instant. Without the use of a measuring device called a speedometer, instantaneous speed is almost impossible to measure. When both speed and direction are specified for the motion the term velocity is used. In other words, velocity is speed in a particular direction. A person walking eastward at 1 km/h does not have the same velocity as a person walking northward at 1 km/h, even though their speeds are the same. Two persons also have different velocities if they walk in the same direction at different speeds or if they are turning. Calculating Speed Activity PROCEDURE Part A: Mark off your walking distance...
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...guilt-dispensing friend, Leroy Jenkins. Bill Brasky had known Leroy Jenkins for (plus or minus) half a million years, the majority of which were flamboyant ones. Leroy Jenkins was unique. She was plucky though sometimes a little... oafish. Bill Brasky called her anyway, for the situation was urgent. Leroy Jenkins picked up to a very ecstatic Bill Brasky. Leroy Jenkins calmly assured him that most spotted wolf hamsters yawn before mating, yet man-eating capybaras usually charismatically belch *after* mating. She had no idea what that meant; she was only concerned with distracting Bill Brasky. Why was Leroy Jenkins trying to distract Bill Brasky? Because she had snuck out from Bill Brasky's with the iPad only two days prior. It was a enchanting little iPad... how could she resist? It didn't take long before Bill Brasky got back to the subject at hand: his iPad. Leroy Jenkins sneezed. Relunctantly, Leroy Jenkins invited him over, assuring him they'd find the iPad. Bill Brasky grabbed his hippopotamus and disembarked immediately. After hanging up the phone, Leroy Jenkins realized that she was in trouble. She had to find a place to hide the iPad and she had to do it fearlessly. She figured that if Bill Brasky took the nappy, busted-out hatchback, she had take at least eight minutes before Bill Brasky would get there. But if he took the Segway? Then Leroy Jenkins would be exceedingly screwed. Before she could come up with any reasonable ideas, Leroy Jenkins was...
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...Dr. Leroy T. Walker A Man of Many Firsts Good morning colleagues and friends. It is with pride, pleasure, and gratefulness that I have this opportunity to share the accolades of a great educator, coach, administrator, author, and humanitarian: Dr. Leroy T. Walker. It is particularly an honor because the first time I heard Dr. Walker speak was at the first Leroy T. Walker breakfast in ____ in 19__. The theme of his talk was “Excellence without Excuse,” a simple, but powerful three words that I will never forget. The grandson of slaves and the youngest of 13 children, LeRoy Walker was born on June 14, 1918, in Atlanta, Georgia where he resided until the death of his father when he was nine. He then moved to Harlem with his older brother Joe until his senior year in high school when he returned to Georgia. While living with Joe, Leroy worked in the family's barbeque restaurant and window cleaning businesses during the Great Depression. Big brother Joe instilled a strong work ethic and an attitude of perseverance; never permitting him to rationalize in spite of hard times and prejudice. The first in his family to go to college, Dr. Walker enrolled at Benedict College, an historically black church-related college in Columbia, South Carolina in 1936 where he majored in science and romance languages and graduated with honors in 31/2 years. He lettered in basketball, track and field, and football, earning 11 letters. Walker, who did not play football in high school, tried out...
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