Answer:
The orbitalswolud be larger in size and have more nodes than orbitals.
Explanation:
Given: orbitals would __________ than orbitals.
Since, the distance between nucleus and orbital increases when we electrons moves away fro m one orbital to another orbital.
So, The orbitals is far from the nucleus as compared with orbitals.
Therefore, The orbitals wolud be larger in size than orbitals.
Now, finding the number of nodes of an orbital is calculated as
Then, number of orbital in .
And number of orbital in .
Therefore, orbitals wolud have more nodes than orbitals.
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Answer :
(b) 4d orbitals would be larger in size than 3d orbitals
(e) 4d orbitals would have more nodes than 3d orbitals
Explanation :
As we move away from one orbital to another, the distance between nucleus and orbital increases. So, 4d orbitals would be far to the nucleus than 3d orbitals.
Hence, 4d orbitals would be larger in size than 3d orbitals.
Number of nodes is any orbital is n - 1 where, n is principal quantum number.
So, number of orbital in 4d is 3.
And number of orbital in 3d is 2.
So, options (b) and (e) are correct.
With what velocity does it hit the ground?
The acceleration of gravity is 9.8 m/s
Using the principles of free fall motion, it can be determined that a tennis ball dropped from a height of 1.16 meters would hit the ground with a velocity of 4.8 m/s.
The objective here is to calculate the initial velocity of the tennis ball just before it hits the ground. This is a physics question related to free fall motion. We will use the equation of motion, v^2 = u^2 + 2as, where 'v' is the final velocity, 'u' is the initial velocity, 'a' is the acceleration, and 's' is the distance. In our case, the initial velocity (u) is 0 because the ball is dropped, not thrown downwards.
The acceleration (a) is the acceleration due to gravity, which is -9.8 m/s² (it's negative because it acts downwards). The distance (s) will be the drop height, which is -1.16 m (it's negative because we're considering downwards as negative direction). Therefore, the equation becomes (v)^2 = 0 + 2*(-9.8 m/s²)*(-1.16 m). Solving this we get v = √(2*9.8*1.16) m/s = 4.8 m/s. So, the tennis ball hits the ground with a velocity of 4.8 m/s.
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decreases
stays the same
disappears
Answer: Increases.
Explanation:
Warning siren is generally used to make people alert of danger. Danger can be anything associated with the health and hazard.
Warning siren can be due to tsunami, earthquake, fire, flood, et cetera. The pitch of siren is low when a person is afar from the siren.
As the person moves close to the siren, the pitch of siren increases.
Answer:
As you move toward the siren the pitch should get louder
Explanation:
b. fall over once you overcome its inertia
c. push against you with equal force
d. heat up due to energy transfer
c. push against you with equal force
Newton's third law simply states that for every action there is an equal and opposite reaction.
So, if object A acts a force upon object B, then object B will exert an opposite yet equal force upon object A.
Newton's third law of motion describes that,
Forces always act in equal but opposite pairs.
Another way of saying this is for every action, there is an equal but opposite reaction.
This means that when you push on a wall, the wall pushes back on you with a force equal in strength to the force you exerted.
A person pushes against a wall (action force), and the wall exerts an equal and opposite force against the person (reaction force).
Therefore,
According to Newton's third law of motion, if you push against a wall, the wall will push against you with equal force.
Learn more about Newton's third law of motion here:
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C. push against you with equal force
Electromagnetic waves travel at in vacuum
The fundamental properties that can be attributed to waves are;
Other properties are ;
Electromagnetic radiation can be regarded as radiation that has waves of the electromagnetic field, which propagate through the space, and it moves along with electromagnetic radiant energy.
Therefore, electromagnetic waves travel at 300,000,000 metres per second in vacuum.
Answer:
da
Explanation: