Answer:
6.41 s
Explanation:
Under constant acceleration we know that
average velocity × time taken = displacement


t = 6.41 s
The proof of used equation is given in the attachment.
The correct answer is evolution
Answer:
The correct option is;
c. He conducted experiments with balls and inclined planes
Explanation:
The inclined plane experiment conducted by Galileo Galilei was one of his most important experiments.
The experiment consisted of a grooved board with which a small metal ball is rolled down in, so as to analyze the held Aristotelian ideas about motion.
In the experiment, the focus was on acceleration, a concept that the previously held ideas about motion
Answer:
Option B. The distance between the objects in Figure A is shorter than the distance between the objects in Figure B.
Explanation:
The force of attraction between two masses is given by the following equation:
F = GM₁M₂ / r²
Where:
F => is the force of attraction
M₁ and M₂ => are the masses of the two objects
G => is the gravitational constant.
r => is the distance between the two objects
From the above formula,
The force of attraction (F) is directly proportional to the product of the two masses and inversely proportional to the square of their apart.
This implies that:
1. An increase in the masses of the object will bring about an increase in the force of attraction and a decrease in the masses will leads to a decrease in the force of attraction.
2. An increase in the distance between the two masses will leads to a decrease in the force of attraction and a decrease in the distance between the two masses will lead to an increase in the force of attraction.
Considering the options given in the question above, option B gives the correct answer to the question.
Answer:

Explanation:
Given that,
The work function for silver is 4.73 eV.
We need to find the value of the work function from electron volts to joules.
We know that,

For 4.73 eV,

So, the work function for silver is
.