140 ? i’m guessing there doesn’t look like there’s much to the question
Answer: At least one of his parents had brown eyes
Explanation: whoever had the brown eyes he got more genetics from them when it came to his eyes
Answer:
Well depending on the ramp's texture or shape probably the second one
Explanation:
Answer:
the energy when it reaches the ground is equal to the energy when the spring is compressed.
Explanation:
For this comparison let's use the conservation of energy theorem.
Starting point. Compressed spring
Em₀ = K_e = ½ k x²
Final point. When the box hits the ground
Em_f = K = ½ m v²
since friction is zero, energy is conserved
Em₀ = Em_f
1 / 2k x² = ½ m v²
v =
x
Therefore, the energy when it reaches the ground is equal to the energy when the spring is compressed.
the upside down image means an inverted image and for an inverted image, magnification is negative
so the answer is -m