This painting represents the Sun and planets (and two dwarf planets) of our solar system. What is not to scale in this painting?

A) The sizes of the planets are not correctly scaled compared to each other or the Sun.
B) The distances between the planets are not shown to scale.
C) The Sun is too big compare to the planets.
D) Everything is correctly scaled, but the planets are shown in the wrong order from the Sun.
E) Neither distances nor sizes are correctly scaled.


B) The distances between the planets are not shown to scale.

Physics & Space Science

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What is the wavelength, in meters, of radio waves produced by a radio station with a frequency of 1400 kHz? (c = 3.00 × 10^8 m/s)

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Relative Velocity: Your motorboat can move at 30 km/h in still water. What is the minimum time it will take you to move 12 km downstream in a river flowing at 6.0 km/h?

A. 20 min B. 22 min C. 24 min D. 30 min

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As shown below, a square loop of wire of side a moves through a uniform magnetic field of magnitude B perpendicular to the page at constant velocity

1 directed to the right. Which statement regarding the electric field induced in the wires is correct for the wires at the left and right sides of the loop?

image

a.
The electric field image is directed upwards in both the right and left sides of the loop.

b.
The electric field image is directed upwards in the right side and downwards in the left side of the loop.

c.
The electric field image is directed upwards in the left side and downwards in the right side of the loop.

d.
The electric field image is directed downwards in both the right and left sides of the loop.

e.
There is no electric field present in any side of the loop.

Physics & Space Science

A 25-g string is stretched with a tension of 43 N between two fixed points 12 m apart. What is the frequency of the second harmonic?

A) 18 Hz B) 24 Hz C) 36 Hz D) 12 Hz E) 6.0 Hz

Physics & Space Science