Ladder 6.55 m long leans against the side of a building. if, Ask an Expert

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Q1. A proton orbits a long charged wire, making 1.1 times 10^ {6} revolutions per second. The radius of the orbit is 1.1 cm. What is the wire's linear charge density?

Q2. Ladder 6.55 m long leans against the side of a building. If the ladder is inclined at an angle of 65.5° to the horizontal, what is the horizontal distance from the bottom of ladder to the building?

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