When you double the number of windings in a solenoid keeping all other parameters (radius, length and current) fixed, the magnetic field at the center of the solenoid will
A) double.
B) triple.
C) quadruple.
D) be reduced to one-fourth as much.
E) be reduced to half as much.
A
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Which of these is true about the seasons of Uranus?
A) With a tilt of 29 degrees, they are not that different from our solstices and equinoxes. B) Its strange tilt produces extreme seasonal variations, especially at the poles. C) At the Uranian equator, the Sun would pass overhead every sixteen hours. D) At the Uranian pole the Sun sets every 16 hours during the summer and winter. E) There are no seasons at the poles.
As one of the strongest sources of radio waves in the solar system, the ________ has an observed period of about a day
Fill in the blank(s) with correct word
In a flowing fluid, the pressure where the fluid is moving slower is higher than the pressure where the fluid is moving faster
Indicate whether the statement is true or false
The International Space Station is orbiting at an altitude of about 370 km above the earth's surface. The mass of the earth is 5.97 × 1024 kg, the radius of the earth is 6.38 × 106 m, and G = 6.67 × 10-11 N • m2/kg2
Assuming a circular orbit, (a) what is the period of the International Space Station's orbit? (b) what is the speed of the International Space Station in its orbit?