Answer:
<h3>
steam point</h3>
The upper fixed point, or steam point, is the temperature of pure boiling water at normal atmospheric pressure. Note that the fixed points are defined using common physical phenomena so that they can be easily reproduced.
C. Use Coulomb's law F=kq1q2/r^2, where q1 and q2 are the two charges, and r is the distance between the two. Plug in q1=0.0072 C, q2=-0.0060 C, r=0.0040 m, k is the constant 9*10^9 N, F=-2.4*10^10 N, so the answer is C.
Answer:
294.4 N
Explanation:
Since the hose obeys Hooke's law, the force it exerts on the balloon in the pouch is given by:
where
k is the spring constant
x is the stretching
In this problem,
k = 92.0 N/m
x = 3.20 m
Therefore, the force exerted is
1) The electric field between the two plates is
. The potential difference between the plates is given by
where d is the separation between the plates. By using
we find
2) The work done by the electric field to move the electron by that distance is equal to the variation of electric potential energy of the electron:
where e is the electron charge. By substituting numbers, we find
Disregarding that the cities are 120 miles apart in an absolute straight line, because no road is straight,
<span>One can assume that velocity = distance / time </span>
<span>V = 200 miles / 4 Hours </span>
<span>V = 50 Miles / Hour</span>