Answer:
Explanation:
Given that:
- Area of the plate of capacitor 1= Area of the plate of capacitor 2=A
- separation distance of capacitor 2,
- separation distance of capacitor 1,
- quantity of charge on capacitor 2,
- quantity of charge on capacitor 1,
We know that the Capacitance of a parallel plate capacitor is directly proportional to the area and inversely proportional to the distance of separation.
Mathematically given as:
.....................................(1)
where:
k = relative permittivity of the dielectric material between the plates= 1 for air
From eq. (1)
For capacitor 2:
For capacitor 1:
We know, potential differences across a capacitor is given by:
..........................................(2)
where, Q = charge on the capacitor plates.
for capacitor 2:
& for capacitor 1:
Alex is driving at 21.2508882 miles per hour
Answer:
Three terms in planetary science sound similar but have different meanings.Fill in the blanks below with the correct term. Important: Spelling matters! Use only lowercase! a. A solar eclipse occurs when the Moon passes across the disk of the Sun. b. An ellipse describes the shape of a planetary orbit about the Sun.c. The ecliptic describes the path of the Sun as seen against the background stars.
Explanation:
When the moon places between the Earth and the Sun, a solar eclipse occurs. The moon is capable to hide the solar disk, even with the sun being 400 times bigger than the moon but the moon is 400 times closer to the Earth than the sun.
Kepler's first law establishes that all the planets revolve around the Sun in an ellipse orbit, with the sun in one of the focus.
The ecliptic is the apparent path that the sun has in the celestial sphere as a consequence of the daily movement of the Earth around its axis
Answer:
13520 N
Explanation:
Pascal's Principle: The principle states that the pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and the walls of the containing vessel.
The operation of hydraulic press and car brake system is based on pascal's principle.
From pascal's principle,
F/A = f/a ........................... Equation 1
Where F = force exerted by the large piston, A = area of the large piston, f = force applied to the small piston, area of the small piston.
Making F the subject of the equation
F = A(f/a)......................... Equation 2
Given: A = 0.13 m², a = 0.0075 m², f = 780 N
Substituting into equation 2
F = 0.13(780/0.0075)
F = 13520 N.
Thus the force exerted by the large piston = 13520 N