To solve this problem it is necessary to apply the concepts related to the kinematic equations of linear motion. For this purpose, we will use the definition of the speed equivalent to the displacement made by a body in a fraction of time. From this definition we will relate the time and distance variables required in the problem
Here,
v = Velocity
d = Distance
t = Time
With our values we have,
The speed of light is the speed at which waves move, therefore using the same formula above, but to find the distance we would have
Here,
c = Speed velocity
We have then,
Therefore the distance between the Earth and the spaceship is
Answer:
Explanation:
First Law of Motion: Law of Inertia.
An object in motion stays in motion unless an outside force is applied to the object to make it stop, and an object at rest will stay at rest unless an outside force is applied to make the object move.
Second Law of Motion: Law of Acceleration.
It explains the equation with force. Force is equal to mass times its acceleration. It also explains how mass can affect acceleration. They are inversely proportional. Mass can decrease acceleration.
Third Law of Motion: Law of Action-Reaction.
For every action that occurs on an object, an opposite reaction occurs. This explains how forces act in pairs, there is an action force and a reaction force.
Answer:
b Day-to-day condition of the atmosphere
Explanation:
Weather is short term, Climate is long term
- Some people view bacteria specimens with a 100x objective lens in order to see the smallest details.
- Others may use a 10x objective lens for more general purposes, such as examining stained slides or pictures.
- And still others may use a 40x objective lens to gain maximum resolution when viewing images of thick samples.
It is important to choose the appropriate magnification for your needs so that you can properly examine the specimen under study.
<h3>Why is the 100x objective lens necessary to see bacteria?</h3>
- Bacteria must, of course, be viewed at the maximum magnification and resolution possible because to their small size.
- Due to optical restrictions, this is approximately 1000x in a light microscope.
- To improve resolution, the oil immersion method is performed. This calls for a unique 100x objective.
To learn more about bacterial specimen, visit:
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Answer:
c.It is producing either a 435-Hz sound or a 441-Hz sound
Explanation:
Beat is a phenomenon of interference that occurs when two waves with slightly different frequency interfere with each other. When this occurs, the frequency of the beats is given by
(1)
where f1, f2 are the frequencies of the two waves.
In this problem, we have 6 beats every 2 seconds, so the beat frequency is
We also know the frequency of one of the two sounds,
So according to eq.(1), this means that the sound of the second trombone can have 2 different frequencies: