A pair of observers moving relative to one another will always agree upon all but which of the following:
A. the length of a space-time interval between two events
B. their respective rest masses
C. whether two events are simultaneous
D. their relative velocity
E. the relativistic factor gamma that links their reference frames
C. whether two events are simultaneous
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Springs: A force of 30 N stretches a very light ideal spring 0.73 m from equilibrium. What is the force constant (spring constant) of the spring?
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A person's face is 30 cm in front of a concave shaving mirror. If the image is an erect image 1.5 times as large as the object, what is the mirror's focal length?
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An electron is released from rest at the negative plate of a parallel plate capacitor. If the distance between the plates is 5 mm and the potential difference across the plates is 5 V, with what velocity does the electron hit the positive plate? (me = 9.1 × 10?31 kg, qe = 1.6 × 10?19 C.)
What will be an ideal response?
This bar graph is based on statistical study of results from the Kepler mission. Which of the following conclusions is supported by the graph?
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