Sim a abelha esta movendo na mesma velocidade do carro
The frequency and wavelength of the sound wave with the given time period and speed are 500Hz and 0.688m respectively.
Period is simply the time taken for a complete cycle of vibration to pass a given point. Frequency is expressed as;
f = 1/T
Where f is frequency and T is period of time.
Given that;
f = 1/0.002s
f = 500s⁻¹
f = 500Hz
Wavelength is simply the distance over which the shapes of waves are repeated. It is the spatial period of a periodic wave.
From the wavelength, frequency and speed relation,
λ = s ÷ f
Where λ is wavelength, s is speed and f is frequency.
Given that;
λ = s ÷ f
λ = 344m/s ÷ 500s⁻¹
λ = 0.688m
Therefore, the frequency and wavelength of the sound wave with the given time period and speed are 500Hz and 0.688m respectively.
Learn more about Speed, Frequency and Wavelength here: brainly.com/question/27120701
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Answer:
Given
Time (T) = 0.002 sec
Velocity(V) = 344 m/s
Frequency (f) = ?
Wavelength (w) = ?
Explanation:
We know that
Frequency (f) = 1/ t
= 1/ 0.002
= 500 hertz
Now
wavelength = V/f
= 344/500
= 0.688 m
If the force remains unchanged, pushing a box three times farther requires three times more work because work is directly proportional to distance in the work formula W = F × d.
The student is asking about the work required to push a box across a room. In Physics, work is defined as the product of the force applied to an object and the distance over which it is applied, assuming force and distance are in the same direction. The formula for work is W = F × d, where W is work, F is the constant force applied, and d is the distance the object moves.
Assuming the same constant force is applied to the box if a student needs to push the box three times farther, they would do three times more work. This is because work is linearly proportional to the distance if the force remains unchanged. To illustrate, if pushing the box over a certain distance requires W joules, then pushing it three times that distance requires 3W joules of work.
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Answer:
Removing some of the books reduced the mass of the box, and less force was needed to push it across the floor.
B:science
C: scientific methods
D: technology
E: controlled variables
Controlled variables are the factor that remains at the same phases of an experiment.
Anything kept constant or constrained in a research study is referred to as a control variable. Despite not being relevant to the study's objectives, this variable is controlled because it might have an impact on the results.
Variables can be controlled either directly by maintaining their value throughout a study (for example, by maintaining a constant room temperature in an experiment) or indirectly by using techniques like randomization or statistical control (e.g., to account for participant characteristics like age in statistical tests).
Hence, controlled variables are that variables which are kept at the same phases of an experiment.
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the controlled varaibles aka E. because the control group is Group of subjects in the experiment that experimental group as compared to
Answer: concrete
Explanation: because of the absorption
(from Penn Foster) ⭐⭐⭐⭐⭐
Material Coefficient of Absorption
Perforated acoustic ceiling material 60%
Heavy curtains (A) 50%
Carpeting (B) 20%
Wood (C) 5%
Plaster 3%
Clay tile (D) 3%
Concrete 2%
The answer is A. Heavy curtains ✅