Tyrone is interested in conducting a study to investigate what type of dog food dogs prefer. He selects two brands of canned dog food: Brand A, a chicken-based dog food; and Brand B, a beef-based dog food. In the morning, he feeds 20
dogs Brand A and records how much food is left after one hour. In the afternoon, he feeds 20 different dogs, of the same
age and type, Brand B. Again, he records how much food is left after one hour. He finds that cats eat significantly more of
Brand B than Brand A.
What type of design has Tyrone used in his study?

Which type of wave can travel without a medium

In addition to gravity, what is the other predominant force that affects the motion of a pendulum?

Isobars are lines of constant or equal pressure on a weather map. they can be used to find areas of low or high pressure over a broad area, and they can tell us how intense the system may be. on weather maps, you may have noticed areas that have a large l or h over a region with lines circling around them. the l stands for low pressure and h stands for high pressure. the lines circling them are isobars. check out the pressure system and isobars over georgia and florida. what is the present weather in this area ? a) clear and sunny b) cold and cloudy c) changing weather d) lots of precipitation