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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Textbook Question
Chapter 3, Problem 5TYP
Stars like our Sun have low-density, gaseous atmospheres surrounding their hot, dense cores. If you were looking at the spectra of light coming from the Sun (or any star), which of the three types of spectrum would be observed? Explain your reasoning.
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A ball of mass m = 1.95 kg is released from rest at a height h = 57.0 cm above a light vertical spring of force constant k as in Figure [a] shown below. The ball strikes the top of the spring and compresses it a distance d = 7.80 cm as in Figure [b] shown below. Neglecting any energy losses
during the collision, find the following.
т
h
m
a
d
T
b
(a) Find the speed of the ball just as it touches the spring.
m/s
(b) Find the force constant of the spring.
kN/m
Truck suspensions often have "helper springs" that engage at high loads. One such arrangement is a leaf spring with a helper coil spring mounted on the axle, as shown in the figure below. When the main leaf spring is compressed by distance yo, the helper spring engages and then helps to
support any additional load. Suppose the leaf spring constant is 5.05 × 105 N/m, the helper spring constant is 3.50 x 105 N/m, and y = 0.500 m.
Truck body
yo
Main leaf
spring
-"Helper"
spring
Axle
(a) What is the compression of the leaf spring for a load of 6.00 × 105 N?
m
(b) How much work is done in compressing the springs?
]
A block of mass m₁
=
10.0 kg is connected to a block of mass m₂
34.0 kg by a massless string that passes over a light, frictionless pulley. The 34.0-kg block is connected to a spring that has negligible mass and a force constant of k = 200 N/m as shown in the figure below. The spring is
unstretched when the system is as shown in the figure, and the incline is frictionless. The 10.0-kg block is pulled a distance h = 22.0 cm down the incline of angle = 40.0° and released from rest. Find the speed of each block when the spring is again unstretched.
Vm1
×
1.32
Vm2
= 1.32
×
m/s
m/s
Chapter 3 Solutions
Lecture- Tutorials for Introductory Astronomy
Ch. 3 - The electromagnetic spectrum of light is often...Ch. 3 - Prob. 2EPLCh. 3 - Prob. 3EPLCh. 3 - Another property of light is the energy. Which of...Ch. 3 - Prob. 5EPLCh. 3 - Prob. 6EPLCh. 3 - Prob. 7EPLCh. 3 - For each statement (a-d) provided below, circle...Ch. 3 - Prob. 9EPLCh. 3 - Which, if any, of the different wavelengths of...
Ch. 3 - Which, if any, of the different wavelengths of...Ch. 3 - Which, if any, of the different wavelengths of...Ch. 3 - Imagine you are comparing the ability of electric...Ch. 3 - Prob. 2LUPCh. 3 - Prob. 3LUPCh. 3 - Imagine you are comparing the ability of electric...Ch. 3 - Two students are discussing their answers to...Ch. 3 - If two hot plates have the same temperature and...Ch. 3 - Likewise, if two stars have the same surface...Ch. 3 - Prob. 8LUPCh. 3 - Prob. 9LUPCh. 3 - Prob. 10LUPCh. 3 - Prob. 11LUPCh. 3 - Prob. 12LUPCh. 3 - Prob. 13LUPCh. 3 - Prob. 14LUPCh. 3 - The graph below plots the luminosity of a star on...Ch. 3 - Which color of light has the greatest energy...Ch. 3 - Imagine that the blue light and orange light from...Ch. 3 - Prob. 3BLPCh. 3 - Prob. 4BLPCh. 3 - Prob. 5BLPCh. 3 - Prob. 6BLPCh. 3 - Prob. 7BLPCh. 3 - Prob. 8BLPCh. 3 - Prob. 9BLPCh. 3 - Using the blackbody curves shown in Figure 2b, for...Ch. 3 - Prob. 11BLPCh. 3 - Prob. 12BLPCh. 3 - Prob. 13BLPCh. 3 - Prob. 14BLPCh. 3 - Consider the blackbody curves for Stars E and D...Ch. 3 - What type of spectrum is produced when the light...Ch. 3 - What type of spectrum is produced when the light...Ch. 3 - Describe in detail the source of light and the...Ch. 3 - There are dark lines in the absorption spectrum...Ch. 3 - Stars like our Sun have low-density, gaseous...Ch. 3 - Prob. 6TYPCh. 3 - Two students are looking at a brightly lit full...Ch. 3 - Prob. 8TYPCh. 3 - In this activity, we will use a representation of...Ch. 3 - One way an atom emits light (photons) occurs when...Ch. 3 - In which case does an atom emit more energy...Ch. 3 - Two students are talking about how light is...Ch. 3 - Prob. 5LIPCh. 3 - At the right is a sketch showing one of the atoms...Ch. 3 - Prob. 7LIPCh. 3 - At the right is a sketch showing one of the atoms...Ch. 3 - Consider the following discussion between the two...Ch. 3 - Prob. 10LIPCh. 3 - The absorption line spectra for six hypothetical...Ch. 3 - Prob. 2ANPCh. 3 - Prob. 3ANPCh. 3 - Prob. 4ANPCh. 3 - Prob. 5ANPCh. 3 - Prob. 7ANPCh. 3 - Prob. 8ANPCh. 3 - Prob. 9ANPCh. 3 -
Consider the situations shown (A-D).
In which...Ch. 3 -
Consider the situations shown (A-D).
In which...Ch. 3 -
In which of the situations shown (A-D) will the...Ch. 3 -
Imagine our solar system is moving in the Milky...Ch. 3 - Prob. 5DOPCh. 3 - Prob. 6DOPCh. 3 - Prob. 7DOPCh. 3 - Prob. 8DOPCh. 3 - Prob. 9DOP
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- A block of mass m₁ = 10.0 kg is connected to a block of mass m₂ = 34.0 kg by a massless string that passes over a light, frictionless pulley. The 34.0-kg block is connected to a spring that has negligible mass and a force constant of k = 200 N/m as shown in the figure below. The spring is unstretched when the system is as shown in the figure, and the incline is frictionless. The 10.0-kg block is pulled a distance h = 22.0 cm down the incline of angle 0 = 40.0° and released from rest. Find the speed of each block when the spring is again unstretched. m/s Vm1 Vm2 m/s mi m2 k iarrow_forwardTruck suspensions often have "helper springs" that engage at high loads. One such arrangement is a leaf spring with a helper coil spring mounted on the axle, as in the figure below. The helper spring engages when the main leaf spring is compressed by distance yo, and then helps to support any additional load. Consider a leaf spring constant of 5.45 × 105 N/m, helper spring constant of 3.60 × 105 N/m, and y = 0.500 m. Truck body Dyo Axle (a) What is the compression of the leaf spring for a load of 4.90 × 105 N? m (b) How much work is done compressing the springs? ]arrow_forwardA skier of mass 75 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 50 m up a 30° slope (assumed frictionless) at a constant speed of 2.8 m/s? KJ (b) What power (expressed in hp) must a motor have to perform this task? hparrow_forward
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