Lecture- Tutorials for Introductory Astronomy
3rd Edition
ISBN: 9780321820464
Author: Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher: Addison-Wesley
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Chapter 5, Problem 12GAP
To determine
The agreement or disagreement with any or all of the students, explain with reasoning.
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please help with 27 part A.
solve 27 B
Calf muscle
Lower leg bones
B
A
C
d
AB
A-
dBC
Ꮎ
B
The top left figure shows an anatomical structure in the lower leg and foot that are involved in standing on
tiptoe, with the heel raised slightly off the floor so that the foot effectively contacts the floor only at point C.
The calf muscle pulls on the foot at point A, which is rotating around point B where the foot contacts the
lower leg bones.
We want to compute the pulling force FA of the calf muscle necessary for the person to stand on tiptoe as
well as the force FB on the lower leg bones from the foot. For simplicity we will assume that the points A, B
and C lie on a single line as shown on the simplified diagram on the right. Assume distance dAB = 5.00 cm,
distance dBC = 15.0 cm, the angle between the floor and the foot is 0 = 10.0°, and the person's mass m =
80.0 kg. We will neglect the weight of the foot.
a) Draw a diagram showing the forces acting on the foot. (1 point)
b) Assuming rotational equilibrium compute the calf…
Chapter 5 Solutions
Lecture- Tutorials for Introductory Astronomy
Ch. 5 - Prob. 1HRPCh. 5 - Prob. 2HRPCh. 5 - Prob. 3HRPCh. 5 - Prob. 4HRPCh. 5 - Prob. 5HRPCh. 5 - Prob. 6HRPCh. 5 - Stars of the same spectral type have the same...Ch. 5 - Prob. 8HRPCh. 5 - Prob. 9HRPCh. 5 - Prob. 1STP
Ch. 5 - Prob. 2STPCh. 5 - Prob. 3STPCh. 5 - Prob. 4STPCh. 5 - Prob. 5STPCh. 5 - Prob. 6STPCh. 5 - Prob. 7STPCh. 5 - Prob. 1BIPCh. 5 - Prob. 2BIPCh. 5 - Prob. 3BIPCh. 5 - Prob. 4BIPCh. 5 - Prob. 5BIPCh. 5 - Prob. 6BIPCh. 5 - Prob. 7BIPCh. 5 - At which of the times you drew would you measure...Ch. 5 - Prob. 9BIPCh. 5 - Prob. 10BIPCh. 5 - Prob. 11BIPCh. 5 - As an extrasolar planet orbits around a star, the...Ch. 5 - Which object takes a greater amount of time to...Ch. 5 - At the instant shown in Figure 1, which direction...Ch. 5 - At the instant shown in Figure 1, which direction...Ch. 5 - In general, how does the direction the extrasolar...Ch. 5 - Figure 2 shows the extrasolar planet and star from...Ch. 5 - Prob. 7MOPCh. 5 - Prob. 8MOPCh. 5 - Prob. 9MOPCh. 5 - Prob. 10MOPCh. 5 - Prob. 11MOPCh. 5 - Prob. 12MOPCh. 5 - In which extrasolar planet system(s) (AD) is the...Ch. 5 - In which extrasolar planet system(s) (AD) would we...Ch. 5 - Which system (AD) has the extrasolar planet that...Ch. 5 - Two students are discussing their answers to...Ch. 5 - Match each graph (EH) with the extrasolar planet...Ch. 5 - Prob. 18MOPCh. 5 - Given the location marked with the dot on the...Ch. 5 - Prob. 1STEPCh. 5 - Prob. 2STEPCh. 5 - The Sun’s position in the Milky Way is shown in...Ch. 5 - Prob. 2MIPCh. 5 - We normally consider Deneb to be a bright but...Ch. 5 - Are the stars from Question 2 inside or outside...Ch. 5 - Prob. 5MIPCh. 5 - Are these Messier objects part of the Milky Way...Ch. 5 - Prob. 7MIPCh. 5 - Prob. 8MIPCh. 5 - Prob. 9MIPCh. 5 - Are the objects listed in Question 9 inside or...Ch. 5 - SagDEG is approximately 11,000 ly across. Is this...Ch. 5 - Within the Local Group, the two largest galaxies...Ch. 5 - Prob. 1GAPCh. 5 - Prob. 2GAPCh. 5 - Prob. 3GAPCh. 5 - Prob. 4GAPCh. 5 - Do the galaxies that you identified in Question 4...Ch. 5 - Prob. 6GAPCh. 5 - Prob. 7GAPCh. 5 - Prob. 8GAPCh. 5 - Prob. 9GAPCh. 5 - Prob. 10GAPCh. 5 - Prob. 11GAPCh. 5 - Prob. 12GAPCh. 5 - Prob. 13GAPCh. 5 - Where is the vast majority of mass in the solar...Ch. 5 - Two students are discussing their answers to...Ch. 5 - How do the orbital speeds of planets farther from...Ch. 5 - How does the gravitational force on a planet far...Ch. 5 - Complete the blanks in the sentences of the...Ch. 5 - Imagine you were able to add a very, very large...Ch. 5 - Prob. 7DAPCh. 5 - Prob. 8DAPCh. 5 - Prob. 9DAPCh. 5 - Astronomers were surprised when they saw the real...Ch. 5 - Prob. 11DAPCh. 5 - Prob. 12DAPCh. 5 - Based on your answers to Question 12, would you...Ch. 5 - Based on the MWG’s real rotation curve and your...Ch. 5 - Prob. 15DAPCh. 5 - Prob. 16DAPCh. 5 - Prob. 17DAPCh. 5 - Prob. 1LOPCh. 5 - Prob. 2LOPCh. 5 - Prob. 3LOPCh. 5 - Prob. 4LOPCh. 5 - Prob. 5LOPCh. 5 - Prob. 6LOPCh. 5 - Prob. 7LOPCh. 5 - Prob. 8LOPCh. 5 - Prob. 9LOPCh. 5 - Prob. 1MAPCh. 5 - Prob. 2MAPCh. 5 - Prob. 3MAPCh. 5 - Prob. 4MAPCh. 5 - Prob. 5MAPCh. 5 -
One way to try to understand and envision the...Ch. 5 -
One way to try to understand and envision the...Ch. 5 - Prob. 8MAPCh. 5 -
One way to try to understand and envision the...Ch. 5 -
One way to try to understand and envision the...Ch. 5 -
One way to try to understand and envision the...Ch. 5 -
One way to try to understand and envision the...Ch. 5 -
The balloon analogy is a helpful way to think...Ch. 5 - Prob. 1HUPCh. 5 - Consider the small section of the universe...Ch. 5 - Consider the small section of the universe...Ch. 5 - Prob. 4HUPCh. 5 - Consider the small section of the universe...Ch. 5 - Prob. 6HUPCh. 5 - The relationship you described in Questions 4 and...Ch. 5 - Prob. 8HUPCh. 5 - Prob. 9HUPCh. 5 - Prob. 10HUPCh. 5 - Prob. 11HUPCh. 5 - Complete the sentence below using the words...Ch. 5 - Prob. 13HUPCh. 5 - Prob. 14HUPCh. 5 - Prob. 16HUPCh. 5 - Prob. 17HUPCh. 5 - Prob. 18HUPCh. 5 - Prob. 19HUPCh. 5 - Prob. 20HUPCh. 5 - The two drawings below represent the same group of...Ch. 5 - Prob. 2EXPCh. 5 - Prob. 3EXPCh. 5 - The two drawings below represent the same group of...Ch. 5 - Prob. 5EXPCh. 5 - The two drawings below represent the same group of...Ch. 5 - The two drawings below represent the same group of...Ch. 5 - The two drawings below represent the same group of...Ch. 5 - The two drawings below represent the same group of...Ch. 5 - The two drawings below represent the same group of...Ch. 5 - The two drawings below represent the same group of...Ch. 5 - The two drawings below represent the same group of...Ch. 5 - Prob. 1ELDPCh. 5 - When the universe was 4 billion years old, Galaxy...Ch. 5 - Prob. 3ELDPCh. 5 - Prob. 4ELDPCh. 5 - Prob. 5ELDPCh. 5 - Prob. 6ELDPCh. 5 - Prob. 7ELDPCh. 5 - Prob. 8ELDPCh. 5 - Prob. 9ELDPCh. 5 - When the universe was 4 billion years old, Galaxy...Ch. 5 - Consider the discussion between two students...Ch. 5 - Diagrams A and B below each represent a different...Ch. 5 - Diagrams A and B below each represent a different...Ch. 5 - Diagrams A and B below each represent a different...Ch. 5 - Prob. 4THPCh. 5 - Diagrams A and B below each represent a different...Ch. 5 - Consider the three diagrams (C, D, and E) shown...Ch. 5 - Consider the three diagrams (C, D, and E) shown...Ch. 5 - Imagine you could watch the history of the...Ch. 5 - Prob. 9THPCh. 5 - Prob. 10THPCh. 5 - Look at Diagram A again. Next to Diagram A, make a...
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