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Q 1/52
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What is the velocity of an object that travels 100 meters in 5 seconds?
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20 m/s
25 m/s
10 m/s
15 m/s
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52 questions
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What is the velocity of an object that travels 100 meters in 5 seconds?
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If a runner completes a 400-meter lap in 50 seconds, what is their average velocity?
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A 5 kg object is lifted vertically 10 meters above the ground. What is the potential energy of the object at that height? (Assume g = 9.8 m/s2)
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A 2 kg object is moving with a velocity of 3 m/s. What is its kinetic energy?
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A car with a mass of 1500 kg is traveling at a speed of 20 m/s. What is its kinetic energy?
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A 0.5 kg ball is thrown with a velocity of 10 m/s. Calculate its kinetic energy.
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What change in kinetic energy occurs if a 3 kg object changes its velocity from 4 m/s to 8 m/s?
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A 10 kg object is moving at a velocity of 5 m/s. By what factor must the velocity increase to quadruple the kinetic energy?
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A 0.2 kg projectile is shot vertically with a speed of 20 m/s. What is its kinetic energy?
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A solution is made by dissolving 25 g of salt in 100 g of water. What is the percent by mass of salt in the solution?
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A container holds a solution with a volume of 50 mL of ethanol and 150 mL of water. What is the percent by volume of ethanol in this solution?
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You have a solution containing 10 g of sugar and 90 g of water. What is the percent by mass of sugar in this solution?
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A solution contains 200 mL of acetic acid and 800 mL of water. What is the percent by volume of acetic acid in the solution?
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A chemist prepares a solution by mixing 40 g of potassium chloride with 160 g of water. What is the percent by mass of potassium chloride in this solution?
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A mixture contains 80 mL of methanol and 320 mL of water. What is the percent by volume of methanol in this mixture?
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A saline solution is prepared using 5 g of salt dissolved in 45 g of water. What is the percent by mass of salt in the solution?
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A liquid solution consists of 30 mL of isopropanol mixed with 70 mL of water. What is the percent by volume of isopropanol in this solution?
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A perfume is made by mixing 10 mL of essential oil with 90 mL of alcohol. What is the percent by volume of essential oil in this mixture?
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A lab preparation involves dissolving 15 g of urea in 135 g of water. What is the percent by mass of urea in this solution?