Arrange the following motions in order of increasing acceleration: A dragster car; an object dropped from a cliff near the top of Mt. Everest; an object dropped by astronaut standing on the Moon; an object dropped from the top of a New York City skyscraper.

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1. A light bulb operates at a temperature of 4,300 K and has an emissivity of 0.600 and a surface area of 5.50 mm². How long would the light bulb have to shine on a 2.00 g piece of ice that is at -30.0°C in order to turn the ice into steam at 120°C? Assume all the energy radiated by the light bulb is absorbed by the ice while it becomes liquid and eventually steam. Give an answer in seconds. The following are specific heats for ice, water, and steam. Cice = 2,090 ***C kg kg."C Cwater = 4,186 C Csteam = 2,010 C kg"C The following are latent heats for water. L 3.33 x 10' J/kg Lv = 2.26 x 10° J/kg (A) 31.6 (B) 56.9 (C) 63.5 (D) 21.6 (E) 97.4 Suppose q; consists of three protons and 92 consists of two protons. Let q; be at the origin and q2 be located at d along the x-axis. See the diagram below. 91 92 Χ d 2. Where would the net electric potential due to these two charges be zero? (A) to the left of gi (B) to the right of 92 (D) to the right of 92, as well as to the left of gi (E) Between…

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Chapter 5, Problem 2SP

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Arrange the following motions in order of increasing acceleration:

A dragster car; an object dropped from a cliff near the top of Mt. Everest; an object dropped by astronaut standing on the Moon; an object dropped from the top of a New York City skyscraper.

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1. A light bulb operates at a temperature of 4,300 K and has an emissivity of 0.600 and a surface area of 5.50 mm². How long would the light bulb have to shine on a 2.00 g piece of ice that is at -30.0°C in order to turn the ice into steam at 120°C? Assume all the energy radiated by the light bulb is absorbed by the ice while it becomes liquid and eventually steam. Give an answer in seconds. The following are specific heats for ice, water, and steam. Cice = 2,090 ***C kg kg."C Cwater = 4,186 C Csteam = 2,010 C kg"C The following are latent heats for water. L 3.33 x 10' J/kg Lv = 2.26 x 10° J/kg (A) 31.6 (B) 56.9 (C) 63.5 (D) 21.6 (E) 97.4 Suppose q; consists of three protons and 92 consists of two protons. Let q; be at the origin and q2 be located at d along the x-axis. See the diagram below. 91 92 Χ d 2. Where would the net electric potential due to these two charges be zero? (A) to the left of gi (B) to the right of 92 (D) to the right of 92, as well as to the left of gi (E) Between…

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A 1000-kg car traveling east at 30.0 m/s collides with a 950-kg car traveling north at 25.0 m/s. The cars stick together. Assume that any other unbalanced forces are negligible. What is the speed of the wreckage just after the collision? Please do on paper and show all equations and work done to get to the final answer. Along with any helpful diagrams if needed. These are a part of my review questions in the book but i keep getting different answers from what the book says, it is not a graded assignment***