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When Heated air molecules in a hot air balloon soon carry thermal energy to the top of the balloon? What do muscles produce when moving? Is nickel a good conductor of heat and electricity? Can you magnetize aluminum? A 5.00-L air sample has a pressure of 107 kPa at a temperature of -50.0 degrees C. If the temperature is raised to 102 degrees C and the volume expands to 7.00 L what will the new pressure be? What are substances that are capable of enabling as well as inhibiting the flow of electricity? Why do you think Edison came up with so many inventions related to electric light and power? How does the prisoner free himself from the descending pendulum pit and pendulum? What is the danger posed by people in the balcony of a auditorium stamping their feet in a steady rhythm? What form of energy is stored on a stretched spring? At what temperature does running water freeze? Does burning wood violate the law of conservation of energy? Can you name a non-renewable energy source? During nuclear reaction two protons change into what? What is the name for the device that changes the direction of the current? A stone is allowed to fall from the top of a tower 100m high and at the same time other stone is projected vertically upwards with a velocity of 25ms Calculate when and where the two stones will meet? If two identical objects are placed in different fluids the buoyant force will be greater on the object in the? What does The Evasion Plan of Action provides recovery forces? Does a bullet train travel faster than a bullet? What type of simple machine is a pencil sharpener?