Answer:
The process in which heat flows by the mass movement of molecules from one place to another is C) convection.
Hope this helps :)
Answer:
0.435 N
The centripetal force increases by a factor of 4
Explanation:
Let the centripetal force be F
F =mv^2/r
m= mass of the object
v = linear velocity of the object
r = radius of the circular path
but v = 2πr/T = 2 * 3.142 * 0.147 / 0.388
v = 2.38 m/s
F = 0.0113 * (2.38)^2/0.147
F= 0.435 N
if v= 2v
Then;
F = m(2v)^2/r
F = m4v^2/r
F= 4mv^2/r
The centripetal force increases by a factor of 4
Answer:
r = 0.119 m
Explanation:
distance (d) = 1.6 mm = 0.0016 m
electric field strength (E) = 2.7 x 10^{6} N/C
charge (Q) = -1.07 μC = -1.07 x 10^{-6} C
permitivity of vacuum = 8.8542 x 10^{-12} C^{2}/N
find the radius of the plate required
- lets first find the voltage
voltage (V) = E x d
voltage (V) = 2.7 x 10^{6} x 0.0016 = 4320 V
- lets also find capacitance (C) = Q/V
C = -1.07 x 10^{-6} / 4320 = 2.47 x 10^{-10} F
- the value of capacitance (C) is also = E₀A / d
we can rearrange the equation above to have our area (A) = Cd/ E₀
A =
A = 0.0446 m^{2}
- Area (A) = π x
r =
r =
r = 0.119 m