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oksian1 [2.3K]
3 years ago
8

Explain radiation and which is the hotest source in the world

Physics
1 answer:
alexandr1967 [171]3 years ago
7 0

Ramsar has the highest level of natural radiation in the world.

Hot springs located in the Arkaroola Wilderness Sanctuary in Southern Australia are also credited with higher than normal radiation levels, due to spring water coming in contact with rocks rich in uranium and radon.

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Which type of force is the weakest?
laila [671]

Answer:

Explanation:

Ionic bonding is stronger than any of the given intermolecular forces, but is itself NOT an intermolecular force. Ionic bonds are a permanent chemical connection between two atoms, whereas intermolecular forces as a more transient and temporary attraction between independent molecules

The metallic bond is somewhat weaker than the ionic and covalent bond. Ionic bonds are strong electrostatic attraction forces formed between positive and negative ions. This bond is non-directional, meaning that the pull of the electrons does not favor one atom over another.

Ion-dipole forces are the strongest of the intermolecular forces. ... However, hydrogen bonds are still not as strong as ion-dipole interactions. In order from strongest to weakest, the intermolecular forces given in the answer choices are: ion-dipole, hydrogen bonding, dipole-dipole, and Van der Waals forces.

Van der Waals forces are driven by induced electrical interactions between two or more atoms or molecules that are very close to each other. Van der Waals interaction is the weakest of all intermolecular attractions between molecules

4 0
3 years ago
Read 2 more answers
What is relavite velocity?​
kenny6666 [7]

Answer:

The relative velocity {\displaystyle {\vec {v}}_{B\mid A}} is the velocity of an object or observer B in the rest frame of another object or observer A.

8 0
3 years ago
Read 2 more answers
22= 1/2 9.8 t^2
djverab [1.8K]

Answer:

5790 i dony kiow

Explanation:

6 0
3 years ago
Find the kinetic energy K of a satellite with mass m in a circular orbit with radius R. Express your answer in terms of m, M, G,
ratelena [41]

Answer:

K=\frac{GmM}{2R}

Explanation:

The kinetic energy is defined as:

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

Here, m is the object's mass and v its speed. In this case the speed of the satellite is the orbital speed, which is given by:

v_{orb}=\sqrt\frac{GM}{R}(2)

Here, G is the gravitational constant, M is the mass of the object that the satellite is orbiting and R is the radius of its circular orbit. Replacing (2) in (1):

K=\frac{mv_{orb}^2}{2}\\K=\frac{m(\sqrt\frac{GM}{R})^2}{2}\\K=\frac{GmM}{2R}

3 0
4 years ago
A horizontal force of 12 Newtons is applied to a 4.0 kg box that slides on a horizontal surface. The box starts from rest moves
Serjik [45]

Answer:

7.0N

Explanation:

F=ma

v2=u2+2as

25=0+20a

a=1.25m/s2

F=ma

F=0.4×1.25

Fn=5N

F=12

12-5=Ff

=7.0N

4 0
3 years ago
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