The figure shows a ‘snapshot’ of four different waves in identical ropes stretched with the same force
The waves with the largest frequency are __________ and _________.
II and IV
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In the context of the magnitude scale, the larger the magnitude number of a star, _____
A) the older the star is B) the fainter the star is C) the closer the star is D) the brighter the star is
A pendulum is made with a 4.00 kg mass suspended at the end of a 75.0 cm thin rod. The pendulum is started at an angle of 20.0 degrees with the vertical. What is the velocity of the pendulum as it passes through the origin?
A. 98.9 cm/s B. 94.2 cm/s C. 89.2 cm/s D. 82.1 cm/s E. 79.5 cm/s
The lower the temperature of an object, the
A) lower the frequency of radiation it emits. B) longer the wavelengths it radiates. C) both of these D) neither of these
The cosmological principle calls for the distribution of galaxies to be homogeneous. On the large scale, is this true?
What will be an ideal response?