Answer:
distance between the ships changing 29.255 knot
Explanation:
Given data
time = noon to 5 pm = 5 hours
A = 50 nautical miles due west of B
A = sailing west at 22 knots
B = sailing north at 20 knots
to find out
How fast is the distance between the ships changing
solution
we consider a to b distance is z and at noon ship at 90 degree angle of AB at x and y distance from AB respectively
so here z² = x² + y² ..............1
and 2z z' = 2x x' + 2y y'
so z' = ( x x' + y y' ) / z
and after 5 hours
x = 50 + 22(t) = 50 + 22(5) = 160
y = 20(t) = 20 (5) = 100
so from equation 1
z² = x² + y²
z² = 160² + 100²
z =
z = 188.68
so z' = ( x x' + y y' ) / z
z' = ( 160 (22) + 100(20) ) / 188.68
z' = 29.255
distance between the ships changing 29.255 knot
Volume of the moon rock is 178.51 cm³
<h3>
Explanation:</h3>
Given:
Density of the moon rock = 2.7 g/cm³
Mass of the moon rock = 482 g
To find the volume of the moon rock = ?
The relationship between Density, Mass and Volume is given by
Volume of the moon rock will be 178.51 cm³
Answer:
Explanation:
When we are dealing with Hall voltage, it is necessary to have the values of the current, the magnetic field, the length, the area and the number of carriers at hand. The Hall voltage equation is given by,
Where,
i= current
B= Magnetic field
L = Length
n = number of charge carriers
e= charge of a electron
We need replace and solve for n,
Therefore the density of charge carrier is
Here you go
The application of a sufficiently strong magnetic field to a
superconductor will, in general, destroy the superconducting state. Two
mechanisms are responsible for this. The first is the Zeeman effect1, 2,
which breaks apart the paired electrons if they are in a spin-singlet
(but not a spin-triplet) state. The second is the so-called ‘orbital’
effect, whereby the vortices penetrate into the superconductors and the
energy gain due to the formation of the paired electrons is lost3. For the case of layered, two-dimensional superconductors, such as the high-Tc copper oxides, the orbital effect is reduced when the applied magnetic field is parallel to the conducting layers4.
Here we report resistance and magnetic-torque experiments on single
crystals of the quasi-two-dimensional organic conductor λ-(BETS)2FeCl4, where BETS is.
Here you go!!!