Answer:
A possible explanation to a problem that has not yet been tested.
c. Hypothesis is the correct Answer!
Explanation:
Hypothesis: A possible explanation to the question or problem. It is simply a prediction and has not yet been proven or disproven.
Answer:Problem 1 – The entire International Space Station orbits Earth at a speed of 28,000 kilometers per hour (17,000 mph). At this speed, how many days
Explanation:
Long wavelengths and low frequencies.
<h3><em>The </em><em>distance</em><em> </em><em>travelled</em><em> by</em><em> the</em><em> </em><em>car </em><em>is </em><em>7</em><em>8</em><em> </em><em>m.</em></h3>
Answer: The chemical energy is converted to heat, light ,sound and kinematic movements.
Explanation:
An exploding firework is essentially a number of chemical reactions happening simultaneously or in rapid sequence. When you add some heat, you provide enough activation energy (the energy that kick-starts a chemical reaction) to make solid chemical compounds packed inside the firework combust (burn) with oxygen in the air and convert themselves into other chemicals, releasing smoke and exhaust gases such as carbon dioxide, carbon monoxide, and nitrogen in the process. For example, this is an example of one of the chemical reactions that might happen when the main gunpowder charge burn.
some of the chemical energylocked inside them is converted into four other kinds of energy (heat, light, sound, and the kinetic energy of movement). According to a basic law of physics called the conservation of energy.