Force applied on first mass = 2.8×3.9 = 10.92N
same force = 8.2×a
therefore
a = 10.92÷8.2 = 1.33ms-²
Burning is a chemical change, and this changed the chemical properties of the wood. Indicators that chemical change has taken place are fizzing, energy being given off or color changes.
Answer:4.05 s
Explanation:
Given
First stone is drop from cliff and second stone is thrown with a speed of 52.92 m/s after 2.7 s
Both hit the ground at the same time
Let h be the height of cliff and it reaches after time t

For second stone
---2
Equating 1 &2 we get





C. Seismic energy
This is energy that is released in earthquakes.