Answer:
C
Explanation:
Given that a note has a wavelength of 0.65551 m. If the speed of sound is 343.00 m/s, the pitch of the note is the same as the frequency.
Sound Velocity = product of frequency and wavelength.
Substitute wave speed and wavelength into the formula
343 = f × 0.65551
Make f the subject of formula
F = 343 / 0.65551
F = 523.58 Henz
Therefore, the pitch of the note is 523.52 Hz approximately
The correct answer is option C
2) 5m
3) 500m
3) 5,000,000m
An electromagnetic am band radio wave could have a wavelength of 500m, i.e., 500 meters(Option 3).
A wavelength is a disturbance that travels into space with a given frequency and amplitude.
In conclusion, an electromagnetic am band radio wave could have a wavelength of 500m (Option 3).
Learn more about electromagnetic wavelengths here:
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Physical properties are properties that you can see, feel and measure, they do not change the matter of the substance. Some examples of physical properties are Mass, Color, Shape, Hardness and Boiling point.
Answer: 90 degrees
Explanation:
The projectile will have the greatest air time and height when the launch is the most vertical. At 90 degrees, the launch is all vertical.
The work involved in lifting the heavy object can be describes as:
Work required to lift the object to the same height is independent of the path by which it is taken there.The machines such as ramps do not decrease the work. These help in making our work easier. Due to ramp, we have to push to a longer distance but less effort i.e. less force is required to do the same amount of work.
The force to be exerted in absence of inclined plane is mg ( weight of the object). On the other hand, the force exerted on an inclined plane is reduced by sinθ (F=mg sinθ) value of sinθ lies between 0 and 1.
Hence, it becomes easier to lift a heavy object using ramp.
Answer:
Inclined Plane
Explanation:
An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load. The inclined plane is one of the six classical simple machines.
The basic principle of Inclined pane is as follows
W = F x D ( Force times Distance)
where W shows the word done.