Answer:
a) The distance of spectator A to the player is 79.2 m
b) The distance of spectator B to the player is 43.9 m
c) The distance between the two spectators is 90.6 m
Explanation:
a) Knowing the time it takes the sound to reach both spectators, we can calculate their position relative to the player, using this equation:
x = v * t
where:
x = position of the spectators
v = speed of sound
t = time
Then, the position for spectator A relative to the player is:
x = 343 m/s * 0.231 s = 79.2 m
b)For spectator B:
x = 343 m/s * 0.128 s
x = 43.9 m
The distance of spectator A and B to the player is 79.2 m and 43.9 m respectively.
c) To calculate the distance between the spectators, please see the attached figure. Notice that the distance between the spectators is the hypotenuse of the triangle formed by the sightline of both. We already know the longitude of the two sides. Then, using Pythagoras theorem:
(Distance AB)² = A² + B²
(Distance AB)² = (79.2 m)² + (43.9 m)²
Distance AB = 90. 6 m
The same volume of aluminum has a smaller mass than iron and aircrafts better be light.
The boat traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.
Explanation:
Velocity is the rate of change of displacement with time. It is a physical quantity that has both magnitude and direction.
When expressing velocity, we must consider the directional attribute as it distinguishes it from speed.
Statements:
The hiker began hiking the park's five-mile north hiking trail at 8:00 a.m. with plenty of daylight left to complete the hike before dark.
We are given the displacement of the hiker but the duration of traveling was not indicated. The starting time is known and there is nothing we can infer from it
The motorcyclist traveled along a highway at 55 mph and reached the campsite in less than the two-hour estimated time.
55mph is the speed of the motorcyclist and not velocity. There was no directional attribute.
Walking south along the two-mile canyon trail generally takes less time than traveling the same trail north because walking south is all downhill
This is not quantifiable.
The boat traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.
The 200m marker north is the displacement and the time is 5minutes. This is the most scientifically accurate description of velocity.
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Yes, ionic bond is formed by the transfer of electrons from and an atom of metallic element to the atom of an non metallic element
