a. Explanation Given data: m is 75 kg . h is 25 cm . Formula used: Write the expression for energy ( E ) . E = P Δ t (1) Here, E is the energy, and Δ t is the time. Write the another expression for energy ( E ) . E = m g h Here, m is the mass, h is the height, and g is the acceleration due to gravity, which is known as 9.8 m s 2 . Consider the conversion factor from minutes to seconds. 1 m i n = 60 s Explanation: Substitute m g h for E in equation (1), m g h = P Δ t Rearrange the equation. P = m g h Δ t (2) Since the person completes 150 pushups in 5 minutes, then the time taken to complete 1 pushup is calculated as follows. 150 pushups 5 min = 1 pushup Δ t Δ t = ( 1 pushup 150 pushups ) 5 min Δ t = ( 6.66 × 10 − 3 ) 5 min Δ t = 0.0333 min Simplify the equation by using conversion factor b. To determine The metabolic power.

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ISBN: 9780137574728

Author: Knight

Publisher: PEARSON

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Chapter 11, Problem 14P

To determine

The metabolic power used during workout.

To determine

The metabolic power.

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COLLEGE PHYSICS:STRATEGIC APPR.AP ED.

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Ch. 11 - Prob. 12CQ Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - For Questions 12 through 17, give a specific...Ch. 11 - Prob. 19CQ Ch. 11 - Prob. 20CQ Ch. 11 - Prob. 21CQ Ch. 11 - Prob. 22CQ Ch. 11 - Prob. 24CQ Ch. 11 - Prob. 25CQ Ch. 11 - Electric vehicles increase speed by using an...Ch. 11 - When the suns light hits the earth, the...Ch. 11 - Prob. 29CQ Ch. 11 - Prob. 30CQ Ch. 11 - Prob. 31CQ Ch. 11 - Prob. 32MCQ Ch. 11 - Prob. 33MCQ Ch. 11 - A person is walking on level ground at constant...Ch. 11 - A person walks 1 km, turns around, and runs back...Ch. 11 - 200 J of heat is added to two gases, each in a...Ch. 11 - Prob. 37MCQ Ch. 11 - A refrigerators freezer compartment is set at 10C;...Ch. 11 - A 10% efficient engine accelerates a 1500 kg car...Ch. 11 - Prob. 2P Ch. 11 - A typical photovoltaic cell delivers 4.0 103 W of...Ch. 11 - Prob. 4P Ch. 11 - Prob. 5P Ch. 11 - Prob. 6P Ch. 11 - In an average human, basic life processes require...Ch. 11 - Prob. 8P Ch. 11 - An energy bar contains 22 g of carbohydrates. How...Ch. 11 - Prob. 10P Ch. 11 - Prob. 11P Ch. 11 - Prob. 12P Ch. 11 - An energy bar contains 22 g of carbohydrates. If...Ch. 11 - Prob. 14P Ch. 11 - Prob. 15P Ch. 11 - Prob. 16P Ch. 11 - The label on a candy bar says 400 Calories....Ch. 11 - Prob. 18P Ch. 11 - A weightlifter curls a 30 kg bar, raising it each...Ch. 11 - Prob. 20P Ch. 11 - Prob. 21P Ch. 11 - Prob. 22P Ch. 11 - Suppose your body was able to use the chemical...Ch. 11 - Prob. 24P Ch. 11 - Prob. 25P Ch. 11 - Prob. 26P Ch. 11 - Prob. 27P Ch. 11 - The planet Mercurys surface temperature varies...Ch. 11 - A piece of metal at 100C has its Celsius...Ch. 11 - Prob. 30P Ch. 11 - 500 J of work are done on a system in a process...Ch. 11 - Prob. 32P Ch. 11 - 600 J of heat energy are transferred to a system...Ch. 11 - 10 J of heat are removed from a gas sample while...Ch. 11 - A heat engine extracts 55 kJ from the hot...Ch. 11 - A heat engine does 20 J of work while exhausting...Ch. 11 - A power plant running at 35% efficiency generates...Ch. 11 - A heat engine operating between energy reservoirs...Ch. 11 - A newly proposed device for generating electricity...Ch. 11 - Prob. 41P Ch. 11 - Prob. 42P Ch. 11 - Prob. 43P Ch. 11 - Prob. 44P Ch. 11 - A refrigerator takes in 20 J of work and exhausts...Ch. 11 - Air conditioners are rated by their coefficient of...Ch. 11 - 50 J of work are done on a refrigerator with a...Ch. 11 - Prob. 48P Ch. 11 - Find the maximum possible coefficient of...Ch. 11 - Prob. 50P Ch. 11 - Prob. 51P Ch. 11 - Prob. 52P Ch. 11 - Prob. 53P Ch. 11 - Prob. 55GP Ch. 11 - Prob. 56GP Ch. 11 - The record time for a Tour de France cyclist to...Ch. 11 - Championship swimmers take about 22 s and about 30...Ch. 11 - A 68 kg hiker walks at 5.0 km/h up a 7% slope....Ch. 11 - To make your workouts more productive, you can get...Ch. 11 - The resistance of an exercise bike is often...Ch. 11 - Prob. 62GP Ch. 11 - Prob. 63GP Ch. 11 - An engine does 10 J of work and exhausts 15 J of...Ch. 11 - An engine operating at maximum theoretical...Ch. 11 - An engineer claims to have measured the...Ch. 11 - A typical coal-fired power plant burns 300 metric...Ch. 11 - Prob. 68GP Ch. 11 - Air conditioners sold in the United States are...Ch. 11 - The surface waters of tropical oceans are at a...Ch. 11 - The light energy that falls on a square meter of...Ch. 11 - Prob. 72MSPP Ch. 11 - Prob. 73MSPP Ch. 11 - Prob. 74MSPP Ch. 11 - Prob. 75MSPP Ch. 11 - Prob. 76MSPP Ch. 11 - Prob. 77MSPP Ch. 11 - Prob. 78MSPP Ch. 11 - Prob. 79MSPP

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