COSMIC PERSPECTIVE LL FD
9th Edition
ISBN: 9780135877074
Author: Bennett
Publisher: PEARSON
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Chapter 3, Problem 7EAP
What was the Copernican revolution, and how did it change the human view of the universe?
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A block with mass m₁
= 0.600 kg is released from rest on a frictionless track at a distance h₁ = 2.55 m above the top of a table. It then collides elastically with an object having mass m₂ = 1.20 kg that is initially at rest on the table, as shown in the figure below.
h₁
իջ
m
m2
(a) Determine the velocities of the two objects just after the collision. (Assume the positive direction is to the right. Indicate the direction with the signs of your answers.)
V1=
m/s
m/s
(b) How high up the track does the 0.600-kg object travel back after the collision?
m
(c) How far away from the bottom of the table does the 1.20-kg object land, given that the height of the table is h₂ = 1.75 m?
m
(d) How far away from the bottom of the table does the 0.600-kg object eventually land?
m
An estimated force-time curve for a baseball struck by a bat is shown in the figure below. Let F
F(N)
Fmax
TÀ
0
t (ms)
0
la
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N.S
(b) the average force exerted on the ball
KN
= 17,000 N, t
=
max
a
1.5 ms, and t₁ = 2 ms. From this curve, determine the following.
There are many well-documented cases of people surviving falls from heights greater than 20.0 m. In one such case, a 55.0 kg woman survived a fall from a 10th floor balcony, 29.0 m above the ground, onto the garden below, where the soil had been turned in preparation for planting.
Because of the "give" in the soil, which the woman compressed a distance of 15.0 cm upon impact, she survived the fall and was only briefly hospitalized.
(a) Ignoring air resistance, what was her impact speed with the ground (in m/s)?
m/s
(b) What was the magnitude of her deceleration during the impact in terms of g?
g
(c) Assuming a constant acceleration, what was the time interval (in s) during which the soil brought her to a stop?
S
(d) What was the magnitude of the impulse (in N⚫ s) felt by the woman during impact?
N⚫s
(e) What was the magnitude of the average force (in N) felt by the woman during impact?
N
Chapter 3 Solutions
COSMIC PERSPECTIVE LL FD
Ch. 3 - Prob. 1VSCCh. 3 - Use the following questions to check your...Ch. 3 - Use the following questions to check your...Ch. 3 - Use the following questions to check your...Ch. 3 - Use the following questions to check your...Ch. 3 - Prob. 6VSCCh. 3 - Prob. 7VSCCh. 3 - Prob. 1EAPCh. 3 - Why did ancient peoples study astronomy? Describe...Ch. 3 - Describe the astronomical origins of our day,...
Ch. 3 - What is a lunar calendar? How can it be kept...Ch. 3 - What do we mean by a model in science?Ch. 3 - Summarize the development of the Greek geocentric...Ch. 3 - What was the Copernican revolution, and how did it...Ch. 3 - 8. What is an ellipse? Define its foci, semimajor...Ch. 3 - 9. State and explain the meaning of each of...Ch. 3 - Describe the three hallmarks of science and how we...Ch. 3 - 11. What is the difference between a hypothesis...Ch. 3 - What is the basic idea behind astrology? Explain...Ch. 3 - Science or Nonscience? Each of the following...Ch. 3 - Science or Nonscience? Each of the following...Ch. 3 - Science or Nonscience?
Each of the following...Ch. 3 - Science or Nonscience?
Each of the following...Ch. 3 - Science or Nonscience?
Each of the following...Ch. 3 - Science or Nonscience? Each of the following...Ch. 3 - Science or Nonscience? Each of the following...Ch. 3 - Science or Nonscience?
Each of the following...Ch. 3 - Science or Nonscience?
Each of the following...Ch. 3 - Science or Nonscience? Each of the following...Ch. 3 - In the Greek geocentric model, the retrograde...Ch. 3 - Which of the following was not a major advantage...Ch. 3 - When we say that a planet has a highly eccentric...Ch. 3 - Earth is closer to the Sun in January than in...Ch. 3 - According to Kepler’s third law, (a) Mercury...Ch. 3 - Tycho Brahe’s contribution to astronomy included...Ch. 3 - Galileo’s contribution to astronomy included (a)...Ch. 3 - Which of the following is not true about...Ch. 3 - Which of the following is not true about a...Ch. 3 - When Einstein’s theory of gravity (general...Ch. 3 - What Makes It Science? Choose a single idea in the...Ch. 3 - Prob. 35EAPCh. 3 - Prob. 36EAPCh. 3 - Prob. 37EAPCh. 3 - Earth’s Shape. It took thousands of years for...Ch. 3 - Prob. 40EAPCh. 3 - Copernican Players. Using a bulleted-list format,...Ch. 3 - Prob. 44EAPCh. 3 - The Metonic Cycle. The length of our calendar year...Ch. 3 - Chinese Calendar. The traditional Chinese lunar...Ch. 3 - Method of Eratosthenes I. You are an astronomer on...Ch. 3 - Method of Eratosthenes II. You are an astronomer...Ch. 3 - Mars Orbit. Find the perihelion and aphelion...Ch. 3 - Eris Orbit. The dwarf planet Eris orbits the Sun...Ch. 3 - New Planet Orbit. A newly discovered planet orbits...Ch. 3 - Halley Orbit. Halley’s Comet orbits the Sun every...
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- Example Two charges, one with +10 μC of charge, and another with - 7.0 μC of charge are placed in line with each other and held at a fixed distance of 0.45 m. Where can you put a 3rd charge of +5 μC, so that the net force on the 3rd charge is zero?arrow_forward* Coulomb's Law Example Three charges are positioned as seen below. Charge 1 is +2.0 μC and charge 2 is +8.0μC, and charge 3 is - 6.0MC. What is the magnitude and the direction of the force on charge 2 due to charges 1 and 3? 93 kq92 F == 2 r13 = 0.090m 91 r12 = 0.12m 92 Coulomb's Constant: k = 8.99x10+9 Nm²/C² ✓arrow_forwardMake sure to draw a Free Body Diagram as wellarrow_forward
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