Answer:
Frequency of the sound wave will be 438.61 Hz
Explanation:
We have given wavelength of the sound wave
Speed of the sound wave v = 343 m/sec
We have to find the frequency of the sound wave
We know that speed of the sound wave is given by , here v is velocity, is wavelength and f is frequency
So frequency f
F=mxa
(25-2.6)=7 X a
22.4\7=a
a =3.2 metres per second squared
Answer:
If the blood pressure of a person is more than 120/80 mm of Hg, then it is especially called as high blood pressure.
Explanation:
But regarding answer to this question, The blood pressure of a
person is 140/100 mm of Hg means that the systolic blood pressure of a person is 140 mm of Hg and diastolic blood pressure of a person is 100 mm of Hg.
I hope this answer will help you
Multiply the air pressure by the area of the tabletop
Answer:
42.86m
Explanation:
The first thing we should keep in mind is that the watermelon moves with uniform acceleracion equal to gravity (9.81m / s ^ 2)
A body that moves with constant acceleration means that it moves in "a uniformly accelerated motion", which means that if the velocity is plotted with respect to time we will find a line and its slope will be the value of the acceleration, it determines how much it changes the speed with respect to time.
When performing a mathematical demonstration, it is found that the equations that define this movement are as follows.
where
Vf=29m/s= final speed
Vo= initial speed=0m/S
g=gravity=9.81m/s^2
Y= distance traveled(m)
solving
the distance traveled by watermelon is 42.86m