When you ride a bicycle at constant speed, nearly all the energy you expend goes into the work do against the drag force of the air. Model a cyclist nou as having cross-section area 0.45 m² and, because the human body is not aerodynamically shaped, a drag coefficient of 0.90. Assume that the density of air is 1.2 kg/m 2. 3 Part C The food calorie is equivalent to 4190 J. How many Calories does the cyclist burn if he rides over level ground at 7.3 m/s for 1.0 h? Express your answer in Calories. • View Available Hint(s) Cal C = Submit Previous Answers

When you ride a bicycle at constant speed, nearly all the energy you expend goes into the work do against the drag force of the air. Model a cyclist nou as having cross-section area 0.45 m² and, because the human body is not aerodynamically shaped, a drag coefficient of 0.90. Assume that the density of air is 1.2 kg/m 2. 3 Part C The food calorie is equivalent to 4190 J. How many Calories does the cyclist burn if he rides over level ground at 7.3 m/s for 1.0 h? Express your answer in Calories. • View Available Hint(s) Cal C = Submit Previous Answers

Name: When you ride a bicycle at constant speed, nearlyall the energy you e
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: When you ride a bicycle at constant speed, nearlyall the energy you expend goes into the workdo against the drag force of the air. Model a cyclistnouas having cross-section area 0.45 m² and,because the human body is not aerodynamicallyshaped, a drag

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: A 7.80 g bullet is initially moving at 530 m/s just before it penetrates a block of solid rubber to…

A: Given data:Mass of the bullet (m) = 7.8 gInitially moving (v) = 530 m/sDepth of penetration (d) =…

Q: At sea level a nitrogen molecule has an average translational kinetic energy of 8.7 x 10-21 J. Its…

A: At sea level, a nitrogen molecule has an average translational kinetic energy of 8.7 x 10-21 J. Its…

Q: A box is raised at constant speed by a man pulling up on a rope. Assume that air resistance on the…

A: A box is raised at constant speed by a man pulling up on a rope.

Q: Air moves through a wind turbine with radius 13 m at a uniform speed of 10.9 m/s. The density of the…

A: Radius of wind turbine,Speed,Density of air,To find that how much power is generated?

Q: Need help on this problem. See attatched picture.

A: a) Curl of conservative force is zero. Taking the curl for the given spring force,

Q: Some runners train with parachutes that trail behind them to provide a large drag force. These…

Q: You and your friends push a 400 kg piano across a hardwood floor at a constant speed. You all push…

Q: A cat's crinkle ball toy of mass 15 g is thrown straight up with an initial speed of 3 m/s. Assume…

A: Given: m=15gmm=0.015kgu=3m/s

Q: A body of mass m falls down through a height h. Obtain an expression for the work done by the force…

Q: Comets orbit the Sun in highly elliptical orbits, and are mainly composed of frozen water and CO2.…

A: As per our guidlines we are supposed to answer only one question. kindly respond other questions as…

Q: A tank has the shape of an inverted right circular cone with height 9m and radius 19m. It is filled…

A: The radius of the right circular cone a =19 m. The height of the right circular cone b =9 m. The…

Q: A block of mass m = 2.25 kg slides along a horizontal ww table with speed vo = 10.00 m/s. At x = 0,…

A: The mass of the block is m = 2.25 kg. The speed with which the block slides along a horizontal table…

Q: A golf ball is dropped from a 50 meter tall building. These suckers are quite bouncy... but not…

Q: A student evaluates a weight loss program by calculating the number of times he would need to dlimb…

A: Given: Total height , h=16.0 m Weight fat lose , m=0.45 kg 1 kg of fat can produce chemical 3.77×107…

Q: After studying physics, Emily has decided to take a plunge down a waterslide into an inflatable…

A: Given,h = 2.5 mh'=0.5 mθ = 30°

Q: A box is raised at constant speed by a man pulling up on a rope. Assume that air resistance on the…

A: Since you have asked multiple questions, so according to our guide lines we'll only solve the first…

Q: wes the hos wer is requir

A: Given: Height is 32 m Diameter is 4 cm Mass is 1000 Kg

Q: 1. Some species of whales can dive to depths of 800m. What is the total pressure they experience at…

Q: A skydiver with a mass of 50 kg has reached the typical terminal velocity of 30 m/s. The drag force…

A: To solve the given question, we need to calculate the power dissipation by the resistive force.

Q: A 68.1-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then…

Q: This time, the pendulum is 1.55 m long and has a mass of 3.05 kg. You give it a push away from…

Q: 4) A roller coaster of mass 80.0 kg is moving with a speed of 20.0 m/s at position A as shown in the…

Q: A block of mass 5 kg has a speed of 2 m/s at a height h above a spring (spring constant k = 1000…

A: Given : Mass of the block, m = 5 kg Speed of the block, v = 2 m/s Spring constant, k =…

Topic Video

Question

When you ride a bicycle at constant speed, nearly
all the energy you expend goes into the work
do against the drag force of the air. Model a cyclist
nou
as having cross-section area 0.45 m² and,
because the human body is not aerodynamically
shaped, a drag coefficient of 0.90. Assume that the
density of air is 1.2 kg/m
2.
3

Part C
The food calorie is equivalent to 4190 J. How many Calories does the cyclist burn if he rides over level ground at 7.3 m/s
for 1.0 h?
Express your answer in Calories.
• View Available Hint(s)
Cal
C =
Submit
Previous Answers

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1- Drag force

VIEW

Step 2 - calculating the calories burnt.

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

2F The total mechanical energy of an isolated system is conserved as long as nothing in the system is moving everything in the system moves at a constant speed there are no dissipative forces such as air resistance and friction acting within the system the temperature of the system is zero O nothing in the system is moving O everything in the system moves at a constant speed there are no dissipative forces such as air resistance and friction acting within the system there are no dissipative forces such as air resistance and friction acting within the system
Find the work done by pumping all the oil (density = 794.6 kg / m³) over the edge of a cylindrical tank, which is resting on one of its bases. Suppose the radius of the base is 1.2 m, the height is 3.0 m, and the tank is full of oil. ans. 158687.4008 J
Q3. An aircraft having a take-off mass of 36500 kg and a wing area of 95 m² fitted with turboprop engines of total power 10000 kW, assumed not to vary with speed, and propellers of 87 per cent efficiency. The drag polar for the aircraft is: C₂-0.0145+0.052C₂² At sea level: (a) Calculate the coefficient of lift at minimum required power, associated speed and the minimum power required for steady level flight. (b) Calculate the maximum rate of climb and angle of climb available to the pilot.
Please answer the question correctly
Brad tries out a weight-loss plan that involves repeatedly lifting a 44.2-kg barbell from the floor over his head to a height of 2.00 m. If he is able to complete three such lifts per minute, how long will it take for him to lose 0.50 kg of fat? “Burning” 1 g of fat supplies 38.8 kJ to the body; of this, 10.0% can be used by the muscles to lift the barbell. (Ignore the fat “burned” while he lowers the barbell to the floor.)
A cylindrical tank, shown in the figure, has height 8 m and radius 4 m. Suppose the water tank is half-full of water. Determine the work required to empty the tank by pumping the water to a level 6 m above the top of the tank. Use 1000 kg/m³ for the density of water and 9.8 m/s² for the acceleration due to gravity. 4 m Draw a y-axis in the vertical direction (parallel to gravity) and choose the center of the bottom of the tank as the origin. For 0 ≤ y ≤8, find the cross-sectional area A(y). A(y) = (Type an exact answer, using as needed.) 8 m
A stone with a weight of 5.41 N is launched vertically from ground level with an initial speed of 21.0 m/s, and the air drag on it is 0.263 N throughout the flight. What are (a) the maximum height reached by the stone and (b) its speed just before it hits the ground? (a) Number i Units (b) Number Units
Need in typing only or word file (no handwriting and no image, NO Plagiarism)
5. (A5-1) A water tank has the shape of an inverted square pyramid with a height of 15 m and a base side length of 21 m. It is currently filled with water to a height of 10 m, which as a density of 1000 kg/m³. Find the amount of work required to empty the tank by pumping all of the water to the top of the tank.