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For a school project. Robert records the motion of a sail and plots a position-time graph of the data
From the graph the speed of the snail in the first 20 seconds is centimeter/second. After that, the snal remains in the same place for
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Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?