Answer:
512.5 mJ
Explanation:
Let the two identical charges be q = +35 µC and distance between them be r₁ = 46 cm. A charge q' = +0.50 µC located mid-point between them is at r₂ = 46 cm/2 = 23 cm = 0.23 m.
The electric potential at this point due to the two charges q is thus
V = kq/r₂ + kq/r₂
= 2kq/r₂
= 2 × 9 × 10⁹ Nm²/C² × 35 × 10⁻⁶ C/0.23 m
= 630/0.23 × 10³ V
= 2739.13 × 10³ V
= 2.739 MV
When the charge q' is moved 12 cm closer to either of the two charges, its distance from each charge is now r₃ = r₂ + 12 cm = 23 cm + 12 = 35 cm = 0.35 m and r₄ = r₂ - 12 cm = 23 cm - 12 cm = 11 cm = 0.11 cm.
So, the new electric potential at this point is
V' = kq/r₃ + kq/r₄
= kq(1/r₃ + 1/r₄)
= 9 × 10⁹ Nm²/C² × 35 × 10⁻⁶ C(1/0.35 m + 1/0.11 m)
= 315 × 10³(2.857 + 9.091) V
= 315 × 10³ (11.948) V
= 3763.62 × 10³ V
= 3.764 MV
Now, the work done in moving the charge q' to the point 12 cm from either charge is
W = q'(V' - V)
= 0.5 × 10⁻⁶ C(3.764 MV - 2.739 MV)
= 0.5 × 10⁻⁶ C(1.025 × 10⁶) V
= 0.5125 J
= 512.5 mJ
Answer: The correct answer is "radiometric dating".
Explanation:
Radiometric dating: It is a technique which is used to estimate the age of the rocks. In this technique, there is neither daughter product or parent nuclide can leave or enter the material after its formation.
Radioactive atoms are unstable. It decays into stable daughter atom.
Firstly, measure the quantity of the unstable atoms which are left in rock. Then, compare remaining the quantity of the unstable atoms with the quantity of stable daughter atoms in the rock to calculate the passed time since that rock formed.
Therefore, Scientists have been able to estimate the age of our solar system by radiometric dating.
Answer:
IS TWICE THAT OF THE GRAVITATIONAL FORCE BETWEEN THE SMALLER ASTEROID AND THE SUN
Explanation:
The equation for gravitational force is:
where G is the gravitational constant.
Given that distance remains constant, and the mass of the bigger asteroid is bigger, we can get the following relation:
Here we can see that multiplying the mass by 2 gives us 2 times the gravitational force for the bigger asteroid.
Thus, the gravitational force for the bigger asteroid and the sun is two times that of the smaller asteroid and the sun.
Answer:
Cold
Explanation:
Im pretty sure im sorry if I am wrong
Freezing point of the water is known as 273 K
Hope this helps!
