Compare the characteristics of 4d orbitals and 3d orbitals and compared the following sentences. Check all that apply4d orbitals would __________ than 3d orbitals

a. be a closer to the nucleus
b. be larger in size
c. hold more elections
d.have different shapes
e.have more nodes

Answers

Answer 1

Answer:

Answer:

The $4d$ orbitalswolud be larger in size and have more nodes than $3d$ orbitals.

Explanation:

Given: $4d$ orbitals would __________ than $3d$ orbitals.

Since, the distance between nucleus and orbital increases when we electrons moves away fro m one orbital to another orbital.

So, The $4d$ orbitals is far from the nucleus as compared with $3d$ orbitals.

Therefore, The $4d$ orbitals wolud be larger in size than $3d$ orbitals.

Now, finding the number of nodes of an orbital is calculated as $n-1\; \rm\{{where}, n \;is\; priniciple \; quantum \;number\}$

Then, number of orbital in $4d\;\;\rm{is}\; 4-1=3$ .

And number of orbital in $3d\;\;\rm{is}\; 3-1=2$ .

Therefore, $4d$ orbitals wolud have more nodes than $3d$ orbitals.

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Answer 2

Answer:

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.

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A tennis ball is dropped from 1.16 m above theground. It rebounds to a height of 0.866 m.
With what velocity does it hit the ground?
The acceleration of gravity is 9.8 m/s

Answers

Final answer:

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.

Explanation:

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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As you move toward a warning siren, the pitch _____.increases
decreases
stays the same
disappears

Answers

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:

If I was 14 stone what would my gravity be on venus

Answers

The acceleration of gravity on the surface of Venus (8.87 m/s^2) is 90.4% (rounded) of its value on Earth's surface (9.807 m/s^2). So if your weight on Earth is exactly 14 stone, then you would weigh 12st 9.2lb (rounded) on Venus.

According to Newton's third law of motion, if you push against a wall, the wall will __________.a. attract you with its low gravity
b. fall over once you overcome its inertia
c. push against you with equal force
d. heat up due to energy transfer

Answers

c. push against you with equal force

What is newton's third law of motion?

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.

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C. push against you with equal force

List the characteristics properties of all waves. at what speed do electromagnetic waves travel in a vacuum

Answers

Electromagnetic waves travel at $300,000,000 metres per second$ in vacuum

The fundamental properties that can be attributed to waves are;

reflection
refraction
diffraction
interference.

Other properties are ;

wavelength
frequency
amplitude.

A waves can be regarded as one that disturb the transfers energy.

what all this electromagnetic waves has in common is their ability of them to travel in the vacuum with the same speed.

Their speed in the vacuum is 300,000,000 metres per second which is the speed of light.

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.

Electromagnetic waves that are part of electromagnetic spectrum are:

radio waves
microwaves
infrared light
ultraviolet
X-rays,
gamma rays.

Wavelength can be regarded as distance that exist between identical points i.e the adjacent crests of the adjacent cycles in that waveform

Frequency can be explained as the rate of vibration of the wave electromagnetic field per seconds.

The amplitude of wave can be regarded as distance from the centre line to the bottom of a trough, or to the top of a crest.

Therefore, electromagnetic waves travel at 300,000,000 metres per second in vacuum.

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All electromagnetic waves travel at

299,792,458 meters per second

in vacuum.

What type of exoplanet would you expect to cause the largest Doppler shift in the spectrum of its star? a.) A massive planet that is close to the sun b.) A low mass planet that is close to its sun c.) an average mass planet that is at an average distance from its sun d.) A massive planet that is far from its sun e.) a low mass planet that is far from its sun