Without power you can't work .
Answer:
The answer is D , none of the above
Explanation:
1600÷8=200s 1200÷90=13.33s 50÷15= 3.33s (1600+1200+50)/(200+13.33+3.33) = 13.15m/s
Answer:
(A) The ratio between the restoring force and the density of the medium remain constant
Explanation:
The ratio between the restoring force and the density of the medium is equal to the square of the velocity of the wave.
The general formula that relates the displacement and velocity (x = vt) can be written in wave mechanics such that
where f is the frequency, λ is the wavelength, and v is the velocity of the wave.
According to this equation, in order to halve the wavelength by doubling the frequency, the velocity should be constant. Therefore, the correct answer is (A).
Answer:
<h2>10 kg</h2>
Explanation:
The mass of an object given only the force acting on it and it's acceleration can be found by using the formula
f is the force in N
a is the acceleration in m/s²
We have
We have the final answer as
<h3>10 kg</h3>
Hope this helps you
Answer:
2.837% less than actual value.
Explanation:
Based on given information let's calculate our value.
S = Vxt = 331m/s x 5s = 1655m, that is the total distance that sound would travel in 5 seconds.
1mile = 1609.34meters.
percentage error is.
negative indicates less than actual value.