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Questions in physics

[Answered] A chunk of paraffin (wax) has a mass of 50.4 grams and a volume of 57.9 cm\(^3\). What is the density of paraffin?

[Answered] A ray of light strikes a mirror. The angle formed by the incident ray and the reflected ray measures 90 degrees. What are the measurements of the angle of incidence and the angle of reflection?

[Answered] Which of the substances listed in the table on the first page would heat up more quickly if an equal amount of heat energy were applied to all of the substances at the same time? Explain your answer.

[Answered] What are negative acceleration and positive acceleration?

[Answered] If sulfur-34 undergoes alpha decay, what will it become?

[Answered] What is determined by the motion and spacing of particles?

[Answered] You will be helping Galileo perform an experiment to determine if objects with different masses fall at the same or different rates in the air and in a vacuum. Before conducting your experiment, you need to form a hypothesis. A hypothesis is a prediction of what you think will happen in the experiment. It is a statement that describes, "if" a certain set of circumstances are present, "then" a specific result will occur. **Record your hypothesis here:** **Record the results from step one of the experiment (dropping the objects in the air):** - First trial: - Second trial: - Third trial: **Record the results from step two of the experiment (dropping the objects in a vacuum):** - First trial: - Second trial: - Third trial: **Did the experiment support your hypothesis?** Using the data from your experiment, describe why you believe your hypothesis was either proven or disproven. **What forces were acting on the objects dropped in the air?** What force was acting on the objects dropped in the vacuum? --- **Part Two: Comparing Forces** Choose two forces and compare and contrast these forces. You must provide two ways that they are alike and two ways that they are different. You may make a list, write in paragraph form, or make a chart. Choose two different forces than those used in the prior question and compare and contrast them. Provide two ways that they are similar and two ways that they are different. You may make a list, write it out, or make a chart.

[Answered] What is Circular Motion?

[Answered] A box is lowered using a rope. If the acceleration of the box is 2.5 m/s\(^2\) (downward) and the tension in the rope is 31 N, what is the mass of the box (in kg)?

[Answered] A crime suspect fled the scene when police officers entered the building. How far could he run in 10 minutes if he can run 5 miles per hour?