Explanation:
(a) Displacement of an object is the shortest path covered by it.
In this problem, a student is biking to school. She travels 0.7 km north, then realizes something has fallen out of her bag. She travels 0.3 km south to retrieve her item. She then travels 0.4 mi north to arrive at school.
0.4 miles = 0.64 km
displacement = 0.7-0.3+0.64 = 1.04 km
(b) Average velocity = total displacement/total time
t = 15 min = 0.25 hour
Hence, this is the required solution.
The law of physics that this scenario would violate is the law of conservation of energy.
<h3>What is the law of conservation of energy?</h3>
The law of conservation of energy states that energy possessed by an object or physical body can neither be created nor destroyed but can only be transformed from one form to another.
This ultimately implies that, the energy possessed by the rock at the beginning must be equal to the energy possessed by the rock at the end in accordance with the law of conservation of energy.
Read more on energy here: brainly.com/question/1242059
Answer:
a)equal to
Explanation:
properties of a wave
applies in reflection
others include:refraction,diffraction,interference
Answer: Energy from the core travels by radiation through the radiative
zone, then by convection through the convection zone.
Explanation:
