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Multiple Choice Questions 3) Suppose a player burns 155 Calories of chemical energy during a game of Sepak Takraw. They are 25% efficient at transferring chemical energy to the ball. How many grams of sweat (L, = 2.42 x 10 J/kg) would the player need to evaporate from their skin to remove the excess thermal energy (the energy not transferred to the ball)? a) 100 g b) 200 g c) 300 g d) 400 g e) 500 g f) 600 g 4) Sepak Takraw balls are woven from palm vines. A typical ball has a radius of 8 cm and a mass of 0.18 kg. Assuming the game is at sea level and the ball's drag coefficient is 0.3, what is its terminal velocity? a) 6 m/s b) 10 m/s Short Answer Question c) 14 m/s d) 18 m/s e) 22 m/s f) 26 m/s Sepak Takraw players are remarkably athletic and can jump to impressive heights to kick the ball. Suppose a player kicks a ball in the air, making contact when the ball is 1.25 m above the ground. Just after contact, the ball has a velocity of 10 m/s, 20° above the horizontal. For this question, you may ignore air drag and assume the ball lands on the ground. ⚫ Sketch a motion diagram for this projectile. Sketch an initial velocity vector and determine the x and y components of v¡. ⚫ How far horizontally (in m) does the ball travel before striking the ground?

Multiple Choice Questions 3) Suppose a player burns 155 Calories of chemical energy during a game of Sepak Takraw. They are 25% efficient at transferring chemical energy to the ball. How many grams of sweat (L, = 2.42 x 10 J/kg) would the player need to evaporate from their skin to remove the excess thermal energy (the energy not transferred to the ball)? a) 100 g b) 200 g c) 300 g d) 400 g e) 500 g f) 600 g 4) Sepak Takraw balls are woven from palm vines. A typical ball has a radius of 8 cm and a mass of 0.18 kg. Assuming the game is at sea level and the ball's drag coefficient is 0.3, what is its terminal velocity? a) 6 m/s b) 10 m/s Short Answer Question c) 14 m/s d) 18 m/s e) 22 m/s f) 26 m/s Sepak Takraw players are remarkably athletic and can jump to impressive heights to kick the ball. Suppose a player kicks a ball in the air, making contact when the ball is 1.25 m above the ground. Just after contact, the ball has a velocity of 10 m/s, 20° above the horizontal. For this question, you may ignore air drag and assume the ball lands on the ground. ⚫ Sketch a motion diagram for this projectile. Sketch an initial velocity vector and determine the x and y components of v¡. ⚫ How far horizontally (in m) does the ball travel before striking the ground?

Physics for Scientists and Engineers, Technology Update (No access codes included)
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter20: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 20.3OQ: Assume you are measuring the specific heat of a sample of originally hot metal by using a...
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Multiple Choice Questions 3) Suppose a player burns 155 Calories of chemical energy during a game of Sepak Takraw. They are 25% efficient at transferring chemical energy to the ball. How many grams of sweat (L, = 2.42 x 10 J/kg) would the player need to evaporate from their skin to remove the excess thermal energy (the energy not transferred to the ball)? a) 100 g b) 200 g c) 300 g d) 400 g e) 500 g f) 600 g 4) Sepak Takraw balls are woven from palm vines. A typical ball has a radius of 8 cm and a mass of 0.18 kg. Assuming the game is at sea level and the ball's drag coefficient is 0.3, what is its terminal velocity? a) 6 m/s b) 10 m/s Short Answer Question c) 14 m/s d) 18 m/s e) 22 m/s f) 26 m/s Sepak Takraw players are remarkably athletic and can jump to impressive heights to kick the ball. Suppose a player kicks a ball in the air, making contact when the ball is 1.25 m above the ground. Just after contact, the ball has a velocity of 10 m/s, 20° above the horizontal. For this question, you may ignore air drag and assume the ball lands on the ground. ⚫ Sketch a motion diagram for this projectile. Sketch an initial velocity vector and determine the x and y components of v¡. ⚫ How far horizontally (in m) does the ball travel before striking the ground?
Transcribed Image Text:Multiple Choice Questions 3) Suppose a player burns 155 Calories of chemical energy during a game of Sepak Takraw. They are 25% efficient at transferring chemical energy to the ball. How many grams of sweat (L, = 2.42 x 10 J/kg) would the player need to evaporate from their skin to remove the excess thermal energy (the energy not transferred to the ball)? a) 100 g b) 200 g c) 300 g d) 400 g e) 500 g f) 600 g 4) Sepak Takraw balls are woven from palm vines. A typical ball has a radius of 8 cm and a mass of 0.18 kg. Assuming the game is at sea level and the ball's drag coefficient is 0.3, what is its terminal velocity? a) 6 m/s b) 10 m/s Short Answer Question c) 14 m/s d) 18 m/s e) 22 m/s f) 26 m/s Sepak Takraw players are remarkably athletic and can jump to impressive heights to kick the ball. Suppose a player kicks a ball in the air, making contact when the ball is 1.25 m above the ground. Just after contact, the ball has a velocity of 10 m/s, 20° above the horizontal. For this question, you may ignore air drag and assume the ball lands on the ground. ⚫ Sketch a motion diagram for this projectile. Sketch an initial velocity vector and determine the x and y components of v¡. ⚫ How far horizontally (in m) does the ball travel before striking the ground?
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