Answer:
a) v₀ = 9.2 m/s
b) y₀ = 7.9 m
Explanation:
The position of the balls is given by the equation:
where:
acceleration g = 9.8 m/s²
time t
initial velocity v₀
initial height y₀
a) lets divide (a) in two parts:
1.part: How long will it take the second ball to fall down?
2. part: At time t from part1 + 1.15s, the first ball should land on the ground.
This leaves only one unknown: v₀
b)again, lets divide in two parts
1.part: Where will ball1 be relative to ball2 in 1.15s:
and how fast will it go:
2.part: Now we can plug in to the equation for the position of the two balls. Let's start with the second ball first:
Now let's use this result in the equation for the first ball:
Answer:
the mass of body increases when accelerated.
The statement 'energy cannot be created or destroyed' BEST supports the idea that energy remains constant during an energy transformation. It is the first law of thermodynamics.
<h3>Law of Conservation of Energy</h3>
The law of conservation of energy, also known as the first law of thermodynamics, indicates that energy can neither be created nor destroyed.
According to this law, the energy can be interchanged from one type of energy (e.g., kinetic energy) form to another (e.g., potential energy).
The first law of thermodynamics is fundamental for understanding major science disciplines, and it is a rosetta stone in physics.
Learn more about the first law of thermodynamics here:
brainly.com/question/7107028
Yes carbon dioxide is needed for photosynthesis while cellular respiration needs oxygen and dispurses carbon dioxide
All the angles of reflection are +3° off, so systematic error.
The device used to measure the angle might be miscalibrated or have incorrect markings.
