its C because i just anwserd it & it was right
The ability of singers to shatter glass is due to the control of frequency in their voices. The sound waves will vibrate the air particles that surround the glass at its resonant frequency. The glass will break if a singer sings too loudly.
Answer:
because it form static electricity which can cause fire so it is good to touch a metal pole or similar conducter because they will help us to pass the current in the ground
Answer:
Explanation:
Given data
For Part (a)
Starting with the -ve acceleration of the body (opposite to the gravitational force)
Using equation of motion
For Part (b)
Using the result in Part (a) we can substitute in other equation of motion to get time t:
For Part (c)
At state 2 where vo=0m/s and the acceleration is positive (same direction as the gravitational force)
Answer:
-
Both exceed the matter-energy equivalent of luminous matter
- Dark matter has only an attractive gravitational effect, while the dark energy is repulsive in nature
Explanation:
Dark matter is defined as the matter which consists of about 85% of the total matter of the universe and is no-baryonic in nature.
It is attractive in nature and exerts gravitational pulling effect. Even individual galaxies are under the influence of dark matter. It is way more powerful than the visible matter.
Dark energy is that form of energy which is said to be responsible for the universe's expansion and is repulsive in nature
