A) neutrinos.
B) matter.
C) dark matter.
D) dark energy.
B) matter.
C) dark matter.
D) dark energy.
A long cylindrical shell (radius = 2.0 cm) has a charge uniformly distributed on its surface. If the magnitude of the electric field at a point 8.0 cm radially outward from the axis of the shell is 85 N/C, how much charge is distributed on a 2.0-m length of the charged cylindrical surface?
a. 0.38 nC
b. 0.76 nC
c. 0.19 nC
d. 0.57 nC
e. 0.98 nC
b
Physics & Space Science
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a. an enzyme b. their strongest conformation c. a reducing agent d. their breaking point e. a high energy state
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The energy released when a star explodes in a supernova can be more than the nuclear fusion energy produced by the same star throughout its entire lifetime.
Answer the following statement true (T) or false (F)
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A 0.50-kg mass attached to the end of a string swings in a vertical circle (radius = 2.0 m). When the string is horizontal, the speed of the mass is 8.0 m/s. What is the magnitude of the force of the string on the mass at this position?
a. 16 N b. 17 N c. 21 N d. 11 N e. 25 N
Physics & Space Science