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V125BC [204]
4 years ago
13

Please help please please please please​

Physics
2 answers:
posledela4 years ago
6 0

Answer:

Your answer would be B.

Explanation:

Ionic bonding involves transfer of electrons to complete the octet valence shell.

Please mark Brainliest if this helps!

Nana76 [90]4 years ago
3 0

Answer:

I think it is B

Explanation:

Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.

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Concept map for kinetic energy, work and power
Helen [10]

Kinetic energy: the energy of motion

Work: the change in kinetic energy

Power: the rate of work done

Explanation:

The kinetic energy of an object is the energy possessed by the object due to its motion. Mathematically, it is given by:

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

where

m is the mass of the object

v is its speed

The work done an object is the amount of energy transferred; according to the energy-work theorem, it is equal to the change in kinetic energy of an object:

W=K_f - K_i

where

K_f is the  final kinetic energy

K_i is the initial kinetic energy

Finally, the power is the rate of work done per unit time. Mathematically, ti can be expressed as

P=\frac{W}{t}

where

W is the work done

t is the time elapsed

Learn more about kinetic energy, work and power:

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#LearnwithBrainly

8 0
4 years ago
Fish are not able to regulate their body temperature by producing heat.
4vir4ik [10]

Answer:

evaporating water from its skin

6 0
3 years ago
Read 2 more answers
What is the momentum of an object with a mass of 60 kg and velocity of 10 m/s?<br><br> heeelp
Pavlova-9 [17]

Answer:

Linear momentum= Mass*Velocity

P=mv

P=60*10

P=600Kg m/s

3 0
3 years ago
The small ball of mass m = 0.5 kg is attached to point A via string and is moving at constant speed in a horizontal circle of ra
babymother [125]

Answer:

d = 2.45 meters

Explanation:

Mass of the ball, m = 0.5 kg

Radius of the circle, r = 0.16 m

The angular speed of the ball around the circle is, \omega=2\ rad/s

The attached figure shows the whole scenario. Let F_t is the force acting on the ball in tangential direction. The forces will balanced each other at equilibrium.

In horizontal direction,

T\ sin\theta=F_t=mr\omega^2................(1)

In vertical direction,

T\ cos\theta=mg...............(2)

From equation (1) and (2) :

tan\theta=\dfrac{r\omega^2}{g}

Also,

tan\theta=\dfrac{r}{d}

d=\dfrac{g}{\omega^2}d=\dfrac{9.8}{2^2}

d = 2.45 meters

So, the value of d is 2.45 meters. Hence, this is the required solution.  

3 0
4 years ago
At the Sun Dagger in New Mexico, a dagger-shaped beam of sunlight pierces a spiral
nadya68 [22]

Answer:

D

Explanation:

At noon on the summer solstice. The sun dagger was used to observe astrological readings in the ancient time

7 0
3 years ago
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