In the searches so far, only about 1 in 10 stars show evidence for planets around them
Indicate whether the statement is true or false
TRUE
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Electric Field of Point-Charges: A +5.00-?C point charge is placed at the 0.0 cm mark of a meter stick and a -4.00-?C point charge is placed at the 50.0 cm mark. At what point on a line through the ends of the meter stick is the electric field equal to zero?
A. 1.4 m from the 0 cm mark B. 2.5 m from the 0 cm mark C. 2.9 m from the 0 cm mark D. 3.3 m from the 0 cm mark E. 4.7 m from the 0 cm mark
A 30. N stone is dropped from a height of 10. m, and strikes the ground with a velocity of 13. m/s. What average force of air friction acts on it as it falls?
A) 7.2 N B) 2.9 N C) 1.2 N D) 4.1 N E) 0.13 KN
If I weigh 741 N on Earth at a place where g = 9.80 m/s2 and 5320 N on the surface of another planet, what is the acceleration of objects due to the gravitational attraction on that planet?
A) 70.4 m/s2 B) 51.4 m/s2 C) 61.2 m/s2 D) 81.0 m/s2
The half-life of uranium-232 is 70 years. The time for 3/4 of a sample of uranium-232 to decay is __________
Fill in the blank(s) with correct word