This image combines observations made with visible-light and radio telescopes. Which color in the image represents the radio emission?
What will be an ideal response?
Purple to pinkish-white
You might also like to view...
A block of ice slides freely [no air resistance, no friction] down a slippery slope
The block starts from rest at the top of the slope, where it has a vertical height of 4 m above the bottom of the slope and where it has a gravitational energy of 1000 J. The block's total energy a quarter of the way down the slope [at a height of 3 m] is A) 250 J. B) 500 J. C) 750 J. D) 1000 J. E) greater than 1000 J.
A 26.0-N crate starting at rest slides down a rough 4.8-m-long ramp, inclined at 21.0° with the horizontal. 18 J of energy is lost to friction. What will be the speed of the crate at the bottom of the incline?
a. 27.1 m/s b. 5.81 m/s c. 6.36 m/s d. 4.49 m/s
Probably the best-known comet is ______________ Comet
a. Sally's b. Bally's c. Bailey's d. Malley's e. Halley's
Distinguish between a star and a planet. Which glows, or do they both glow?
What will be an ideal response?