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Goryan [66]
3 years ago
9

Which of the following are likely to form a covalent bond? 1.two gold atom 2. two neon atoms 3. hydrgen and oxygen atoms 4. magn

esium and bromine atoms
Physics
1 answer:
Gwar [14]3 years ago
4 0
Number 3.hydrogen and oxygen atoms because covalent bonds have both hydrogen and oxygen in them
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What is the formula of two vectors which are mutually perpendicular? ​
Svetllana [295]

Answer:

a .(b+c) = a.b+a.c

Explanation:

As the three vectors are perpendicular to each other, one of them must lie perpendicular to the plane containing the other two vectors…say a lies perpendicular to the plane of b and c.(b + c )gives another vector which lies in same plane of c and b .

7 0
3 years ago
Suppose you are standing on the center of a merry-go-round that is at rest. You are holding a spinning bicycle wheel over your h
ioda

Answer:

B. It begins to rotate counterclockwise

Explanation:

It can happen that the merry-go-round remains at rest in the case when the person is standing on the axle  of the merry go round whose axis is fixed to some rigid support, but here the person is standing at the center of the merry-go-round not at the axle hence the according to the conservation of angular momentum. Angular momentum is given as:

L=I.\omega

for the conservation of momentum

I.\omega=I'.\omega'

where:

I= moment of inertia of the merry-go-round

\omega= angular velocity of the merry-go-round

I'= moment of inertia of the bicycle wheel

\omega'= angular velocity of the wheel

As the person tries to stop the wheel which is rotating then the person feels an opposing force which tries to moves the whole system in its direction.

6 0
3 years ago
Suppose a 1 Gbps point-to-point link is being set up between the Earth and a new lunar colony. The distance from the moon to Ear
vagabundo [1.1K]

Answer:

The time required to send the data from Earth to Moon will be 1.28s while for a two way communication, to send it back to the earth, it will take double time i.e. <em>RTT = 2.56s </em>

Explanation:

Distance between Earth and Moon = 385,000 km = 3.85 x 10⁸m

Speed of data travel = speed of light ≈ 3 x 10⁸m/s

As, v=d/t

t=d/v

t=\frac{3.85*10^{8} }{3*10^{8}}

t=1.28s

RTT = Double of single way time taken = 2x1.28

<em><u>RTT=2.56s</u></em>

7 0
3 years ago
Given the recent evidence suggesting that species change due to a certain genetic variations, what would be true?
boyakko [2]

Answer:

c) mutation and natural selection both cause changes in a population

Explanation:

Hope it help

Mark me as brainliest

6 0
3 years ago
Consider the image above and select the answer that best represents the skiers energy.
Masteriza [31]

Answer:

I need an image, but if you're talking about Potential and Kinetic energy, I will determine for you:

Explanation:

Potential Energy: stored energy that depends upon the relative position of various parts of a system.

Kinetic Energy: the form of energy that an object or a particle has by reason of its motion.

Therefore, if the skier is on top of the mountain, they would have potential energy since their energy from the ground to the top of the surface is stored. But, if the skier is in motion/mid-air from the top of a mountain, their energy is kinetic (in motion) because their stored energy (potential) is released as they step off of the surface.

7 0
3 years ago
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