The electric force is exerted by a 40-nC charged particle located at the origin of a Cartesian coordinate system on a 15-nC char
ged particle located at (2.0 m, 2.0 m ).
Determine the direction of the force.
a. ?y direction
b. +x direction
c. ?x direction
d. 45? clockwise from the +x axis.
e. 45? counterclockwise from the +x axis.
f. +y direction
Determine the direction of the force.
a. ?y direction
b. +x direction
c. ?x direction
d. 45? clockwise from the +x axis.
e. 45? counterclockwise from the +x axis.
f. +y direction
1 answer:
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Answers:
a)
b)
Explanation:
a) Since we are told the satellites circle the space station at constant speed, we can assume they follow a uniform circular motion and their tangential speeds are given by:
(1)
Where:
is the angular frequency
is the radius of the orbit of each satellite
is the period of the orbit of each satellite
Isolating :
(2)
Applying this equation to each satellite:
(3)
(4)
(5)
(6)
(7)
(8)
Ordering this periods from largest to smallest:
b) Acceleration is defined as the variation of velocity in time:
(9)
Applying this equation to each satellite:
(10)
(11)
(12)
(13)
(14)
(15)
Ordering this acceerations from largest to smallest: