A diverging lens is thicker at the center than the edges

Indicate whether the statement is true or false


F

Physics & Space Science

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A 3.0 cm section of a horizontal wire carrying a 6.7 A current from east to west is placed in a north to south 0.42 T magnetic field in the lab. What is the magnitude of the force on the 3.0 cm section of the wire?

A. 0.084 N B. 0.17 N C. 0.25 N D. 0.0017 N E. 0.0025 N

Physics & Space Science

How is Einstein's famous equation, E = mc2, important in understanding the Sun?

A) The Sun has a magnetic field strong enough to influence the atmospheres of the planets. B) The Sun's surface temperature is about 6,000° Celsius. C) The Sun is extremely massive. D) The Sun generates energy to shine by losing 4 million tons of mass each second.

Physics & Space Science

Recent work with type I supernovae at great distances suggests the universe may in fact be accelerating its expansion, a discovery attributed to a newly found:

A) repulsive charge on dark matter. B) polarization and a universal spinning magnetic field. C) dark energy. D) magnetic field associated with antimatter. E) mass determined for the neutrinos.

Physics & Space Science

Should we expect to find abundant amounts of gold and other rare-earth elements elsewhere in the universe?

What will be an ideal response?

Physics & Space Science