Answer:
Option A
Explanation:
In this experiment, when balloon is rubbed on the chair electrons are transferred from the hair to the surface of the balloon thereby making balloon negatively charged and hair positively charged. When two negatively charged balloon are brought close to each other, they repel while when balloon is brought closer to the hair, they attract each other
Hence, option A is correct
Blood is essential for good health because the body depends on a steady supply of fuel and oxygen to reach its billions of cells. Even the heart couldn't survive without blood flowing through the vessels that bring nourishment to its muscular walls.
Answer:
27.336
Explanation:
The atomic mass is the weighted average of the atomic masses of the isotopes. Simply multiply each isotopes's atomic mass by its relative abundance, then sum the results.
m = 0.8233 × 26.975 + 0.1767 × 29.018
m = 27.336
What does thrice mean not being mean or anything just saying so I can help with the question
Answer:
IS TWICE THAT OF THE GRAVITATIONAL FORCE BETWEEN THE SMALLER ASTEROID AND THE SUN
Explanation:
The equation for gravitational force is:
where G is the gravitational constant.
Given that distance remains constant, and the mass of the bigger asteroid is bigger, we can get the following relation:
Here we can see that multiplying the mass by 2 gives us 2 times the gravitational force for the bigger asteroid.
Thus, the gravitational force for the bigger asteroid and the sun is two times that of the smaller asteroid and the sun.
