Answer:
The impulse is 1.89 Ns and final velocity of the golf 4.17 
Explanation:
Given:
Average force 
N
Contact time 
sec
Mass of golf ball 
kg
(a)
Impulse is given by,
Ns
(b)
For finding the final velocity,
Therefore, the impulse is 1.89 Ns and final velocity of the golf 4.17
Answer:
Most exceptions to the trend of decreasing radius moving to the right within a period occur in the d-block.
Explanation:
- In a period as we advance from left to right, the number of valence electrons in the same shell increases due to which the effective nuclear charge increases and thus the atomic size decreases.
- In d-block atomic radius initially decreases then remains constant and increases towards the end.
- As one moves from Sc (scandium) to Zn (zinc), the effective nuclear charge increases by a factor of 1, this is because:
- The number of electrons are low in the inner shell.
- The shielding power of d-orbital is low.
- Inter electronic repulsions will be operating at a value less than the nuclear charge, which will result in decrease in atomic radii.
- As the number of electrons in the inner orbital increases the outer electrons repel one another which enables them to push away.
- Although d-orbital has less shielding power, the number of electrons present in it are high. Hence, the electron-electron repulsive force becomes dominant, this results in an increase in the atomic radii.
Therefore, most exceptions to the trend of decreasing radius moving to the right within a period occur in the d-block.
Learn more about the periodic table here:
<u>brainly.com/question/9238898</u>
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Answer:
The water from the surface of the Earth must be evaporated by the sun.
Explanation:
Answer:
<h3>Anything with a dark shade in color and with no reflective surface or any metal</h3>
Explanation:
In this case, a dark shirt or blanket would be a heat conductor as well as metal would be, too
Here is your answer:
1. A alternating current is a current "is an electric current which periodically reverses direction." A direct current is a "<span>current which flows only in one direction."
2. They are alike because both are "they both are able to travel in different directions." How they are not alike is that a "alternating current travels in a reverse direction but a direct current can only travel in one direction each current."
Hope this helps!</span>
