The radius of a circle is increased by 5%. The percentage increase of the circumference is
A. 5%.
B. 10%.
C. 12%.
D. 16%.
A. 5%.
Physics & Space Science
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A student weighing 700 N climbs a flight of stairs 5.0 m high. Calculate the work done
Physics & Space Science
A substance that heats up relatively slowly has a
A) high specific heat capacity. B) low specific heat capacity. C) either of these D) neither of these
Physics & Space Science
An atomic mass unit (amu) is 1/12 the mass of
A) an electron. B) a proton. C) a hydrogen atom. D) a carbon atom. E) a uranium atom.
Physics & Space Science
Spherical Mirrors: A concave spherical mirror with a radius of curvature of 20 cm creates a real image 30 cm from the mirror. How far is the object from the mirror?
A. 20 cm B. 15 cm C. 7.5 cm D. 5.0 cm
Physics & Space Science