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Course Contents > Work and Energy >> work_num_gravity.problem Timer Notes Evalu How much work (in 3) must be done to lift a stac

Course Contents > Work and Energy >> work_num_gravity.problem Timer Notes Evalu How much work (in 3) must be done to lift a stack of bricks, which has a mass of 300 kg, from the ground to a height of 17 m? (9 = 10 m/s2) Submit Answer Tries 0/2 Post Discussion - 46°F Cloudy O llo G H Type here to search 3

Course Contents > Work and Energy >> work_num_gravity.problem Timer Notes Evalu How much work (in 3) must be done to lift a stack of bricks, which has a mass of 300 kg, from the ground to a height of 17 m? (9 = 10 m/s2) Submit Answer Tries 0/2 Post Discussion - 46°F Cloudy O llo G H Type here to search 3

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7 of 15 ITI At any given time, 181 kg of water is falling at 31.6 m/s over the Canadian Falls. Use the conservation of energy theorem to determine how high the Canadian Falls must be? (Assume the water is in free fall with an initial speed of zero)

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7 of 15 ITI At any given time, 181 kg of water is falling at 31.6 m/s over the Canadian Falls. Use the conservation of energy theorem to determine how high the Canadian Falls must be? (Assume the water is in free fall with an initial speed of zero)

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D Question 11 1 pts In a playground, a balloon collides with a much heavier soccer ball. During the collision, which of the following is true? The magnitude of the force exerted by the soccer ball on the balloon is equal to the magnitude of the force exerted by the balloon on the soccer ball. The magnitude of the force exerted by the soccer ball on the balloon is greater than the magnitude of the force exerted by the balloon on the soccer ball. The magnitude of the force exerted by the soccer ball on the balloon is smaller than the magnitude of the force exerted by the balloon on the soccer ball. The question cannot be answered without knowing the speeds at which they collided.

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