Examine your graph for Procedure 1 and determine if the relationship between the circumference and the diameter of a circle is a linear relationship? Justify your answer

Yes, C d r = = ? 2? , which is the equation for a straight line.

Physics & Space Science

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A 2.0-kg object is moving without friction along the x-axis. The potential energy curve as a function of position is shown in the figure, and the system is conservative

If the speed of the object at the origin is 4.0 m/s, what will be its speed at 7.0 m along the +x-axis? A) 4.0 m/s B) 4.2 m/s C) 4.4 m/s D) 4.6 m/s E) 9.8 m/s

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A conducting bar of length L rotates with a constant angular speed of +2.0 rad/s about a pivot P at one end, as shown. A uniform magnetic field (magnitude = 0.20 T) is directed into the paper. If L = 0.40 m, what is the potential difference, VA ? VP?



a.
?12 mV

b.
+8.0 mV

c.
?8.0 mV

d.
+12 mV

e.
?16 mV

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Phase velocity is

A. the maximum transverse velocity of a point on a wave, when the particle is moving fastest in each period of oscillation. B. the velocity of a point on the wave at a given phase. C. always half the group velocity in a wave packet. D. always greater than the particle's velocity when the particle is described in terms of de Broglie matter waves. E. unrelated to the energy of the wave

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Molecular Speeds: At what temperature is the rms speed of hydrogen molecules, H2, which have a molecular weight of 2.02 g/mole, equal to 2.0 km/s? The Boltzmann constant is 1.38 × 10-23 J/K and NA = 6.022 × 1023 molecules/mol.

A. 17°C B. 34°C C. 51°C D. 68°C E. 72°C

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