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Dvinal [7]
3 years ago
8

The purpose of _______'s ministry was to bring the nation in exile back to the God of their covenant

Physics
2 answers:
Anit [1.1K]3 years ago
6 0
The answer would be Jeremiah
ExtremeBDS [4]3 years ago
3 0

The correct answer would be Jeremiah

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suppose that you look into a photometer's eyepiece and the fluorescent disks appear to be equal in intensity. If the distance be
d1i1m1o1n [39]
Use the Inverse square law, Intensity (I) of a light is inversely proportional to the square of the distance(d).

I=1/(d*d)

Let Intensity for lamp 1 is L1 distance be D1 so on, L2 D2 for Intensity for lamp 2 and its distance.

L1/L2=(D2*D2)/(D1*D1)

L1/15=(200*200)/(400*400)
L1=15*0.25
L1=3.75 <span>candela</span>

7 0
3 years ago
Technetium (Tc; Z = 43) is a synthetic element used as a radioactive tracer in medical studies. A Tc atom emits a beta particle
LenKa [72]

Answer : The de-Broglie wavelength of this electron, 0.101\AA

Explanation :

The formula used for kinetic energy is,

K.E=\frac{1}{2}mv^2        ..........(1)

According to de-Broglie, the expression for wavelength is,

\lambda=\frac{h}{mv}

or,

v=\frac{h}{m\lambda}      ...........(2)

Now put the equation (2) in equation (1), we get:

\lambda=\frac{h}{\sqrt{2\times m\times K.E}}  ...........(3)

where,

\lambda = wavelength = ?

h = Planck's constant = 6.626\times 10^{-34}Js

m = mass of electron = 9.11\times 10^{-31}Kg

K.E = kinetic energy = 4.71\times 10^{-15}J

Now put all the given values in the above formula (3), we get:

\lambda=\frac{6.626\times 10^{-34}Js}{\sqrt{2\times 9.11\times 10^{-31}Kg\times 4.71\times 10^{-15}J}}

\lambda=1.0115\times 10^{-11}m=0.101\AA

conversion used : (1\AA=10^{-10}m)

Therefore, the de-Broglie wavelength of this electron, 0.101\AA

7 0
3 years ago
According to the principle of continuity, the velocity of a fluid multiplied by the cross section through which it flows at one
BartSMP [9]

According to the principle of continuity, the velocity of a fluid multiplied by the cross-section through which it flows at one point will equal the product of velocity and cross-section at another point.

The principle of continuity, also known as the continuity equation, is the fluid mechanic's principle. Simply put, what flows into a defined volume over a specified period of time minus what flows out of that volume over that specified period of time must accumulate in that volume. The substance in that volume is depleted if the accumulation's sign is negative.

This is so that our eyes, once they start to follow anything, will keep moving in that direction until they come across another thing or object. A line with an arrow at the end of it, for instance, is a great illustration of the continuity concept.

Note that three conditions must be met for a function to be continuous at a point: At that time, the limit must exist.

Learn more about the principle of continuity:

brainly.com/question/26674695

#SPJ4

7 0
1 year ago
A wagon is pulled by a handle making an upward angle of 25 degrees with a force of 25N. What is the horizontal force pulling the
kolbaska11 [484]

Answer:

22.658 N

Explanation:

We can consider the Force as a sum of horizontal and vertical force vector components as mentioned in the graph,

Here the θ =25 degrees , F=25

Horizontal force =Fx

cos θ \frac{F_x}{F}

F_x =25 * cos (25)\\F_x=22.658 N

3 0
2 years ago
A Ping-Pong ball has a diameter of 2.55 cm and average density of 0.116 g/cm3 . What force would be required to hold it complete
Mrac [35]

Answer:

F = 0.075 N

Explanation:

given,

diameter of ping pong ball = 2.55 cm

average density of the ball = 0.116 g/cm³

Force require to hold the ball completely submerged= ?

Volume of the ball

V = \dfrac{4}{3} \pi r^3

V = \dfrac{4}{3} \pi (\dfrac{2.55}{2})^3

    V = 8.63 cm³

density of water = 1 g/cm³

force required to keep the ball submerged is equal to

F = \rho_w V_w g - \rho_b V g

F = 1\times 8.63\times g - 0.116 \times 8.63 \times g

F = 7.63 x 9.8 x 10⁻³

F = 0.075 N

Force required to keep the ball inside the water is equal to 0.075 N

7 0
3 years ago
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