What is the total energy of a 300-g mass that is attached to a horizontal spring with a force constant of 260 N/m and oscillates along a frictionless horizontal surface with an amplitude of 8.0 cm?
A)
21 J
B)
0.83 J
C)
2.4 J
D)
1.6 J
E)
6.2 J
B
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A concave mirror has a radius of curvature of 1.0 m. An object is placed 2.0 m in front of the mirror. Determine the location of the image (in cm)
a. 130 b. 83 c. 67 d. 150 e. 200
Theories are derived directly from observations
Indicate whether the statement is true or false
Standing Sound Waves: A violin with string length 32 cm and string density 1.5 g/cm resonates in its fundamental with the first overtone of a 2.0-m organ pipe with one end closed and one end open. What is the tension in the string if the speed of sound in air is 344 m/s?
A. 1000 N B. 110 N C. 450 N D. 4100 N E. 56 N
The Galactic Year is the time for our solar system to orbit the Galaxy; it is about
A) 15 million years. B) 225 million years. C) 4.5 billion years. D) 9.6 billion years. E) 13.5 billion years.