When we see a doubling of the image of single quasar, the body creating the gravity lens is just a brown dwarf close to us
Indicate whether the statement is true or false
FALSE
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Wave Characteristics: What is the wavelength used by a radio station that broadcasts at a frequency of 920 kHz? (c = 3.00 × 108 m/s)
A. 22.6 m B. 226 m C. 326 m D. 175 m E. 276 m
Imagine you are plunging into the Sun, starting from Earth. Briefly describe what you will experience on your journey
What will be an ideal response?
Which of the following elements will most likely not form an ion at all?
A) Na B) O C) Ar D) Mg E) Br
A 0.50-kg mass attached to the end of a string swings in a vertical circle (radius = 2.0 m). When the mass is at the lowest point on the circle, the speed of the mass is 12 m/s. What is the magnitude of the force of the string on the mass at this position?
a. 31 N b. 36 N c. 41 N d. 46 N e. 23 N