Answer:
1.5 m/s.
Explanation:
The Speed of a wave is the product of the wavelength and its frequency or it is the ratio of it wavelength and its Period. It can be expressed mathematically as
V = λf or λ/T .............................. Equation 1
Where V = speed of the wave travelling on the string, λ = wavelength of the wave, T = period of the wave, F = frequency of the wave.
Given: λ = 1.8 m ( distance it takes to repeat itself), T = 1.2 s (Time taken to complete a full cycle)
Substitute into equation 1
V = 1.8/1.2
V = 1.5 m/s.
Hence the wave is 1.5 m/s fast.
Answer:
<h2>90 J</h2>
Explanation:
The work done by an object can be found by using the formula
workdone = force × distance
From the question we have
workdone = 30 × 3
We have the final answer as
<h3>90 J</h3>
Hope this helps you
Given that,
Distance, s= 2.4x 10∧5
Time = 6 hours
Average velocity = ?
Since,
Velocity = Distance / Time
V= 2.4 x 10∧5/ 6 = 40000 km/hr
Velocity will be 40,000 km/hr.
Convert it into m/s.
Velocity = (40,000 * 1000) / (60*60) = 11111.11 m/s
Velocity will be 11,111 m/s approx.
I’m not sure because a baseball player run 10 meters north but get out and he turn around and that a other 10 meters for turning around and 4 more meters to his dugout it’s could be d or a because it’s closer to 24
Answer:
D) 1000 m/s
Explanation:
You have the wavelength and frequency, you just need to solve for velocity. You can do this by multiplying each side of the equation by frequency.
Hope this helps.