Answer:
Tstring = 343.35 [N].
Explanation:
Since the block is in equilibrium, we can say that the sum of the forces on the Y-axis or vertical is equal to zero.
∑Fy = 0
where:
Tstring = tension of the string [N]
W = weight of the block [N]
And the weight can be calculated multiplying the mass of the block by the gravity acceleration.
Now replacing:
![T_{string}=m*g\\T_{string}=35*9.81\\T_{string}=343.35[N]](https://tex.z-dn.net/?f=T_%7Bstring%7D%3Dm%2Ag%5C%5CT_%7Bstring%7D%3D35%2A9.81%5C%5CT_%7Bstring%7D%3D343.35%5BN%5D)
Answer:
━☆ﾟ.*･｡ﾟIf <em>the angle is the angle between the eastern axis and the vector, then the leg adjacent the angle is the x-component and the leg opposite the angle is the y-component. Thus, the cosine function is used to calculate the x-component and the sine function is used to calculate the y</em>
The coefficients are 8 17 1 8
remember that we have to have the same amount of atoms on each side of the equation.
start with C there is 1 on the left and 8 on the right so 8 has to be on the CO. now there is an 8 now on the water there is 1 originally and now we need 8. from water there is now a total of 16 hydrogen plus the 18 from octane for a total of 34. the left has an H2. 34/2 = 17. that is where the 17 comes from
Answer:
speed = 3.95 m/s
Explanation:
area = π x radius^2
area = π x (2.67 x 10^-3)^2
volume flow rate = area x speed
volume / time = area x speed
density = mass / volume
volume = mass / density
<u>mass / (density x time) = area *speed</u>
mass flow rate = mass / time
<u>mass flow rate / density = area x speed</u>
6.55 x 10^-2 / 740 = pi * (2.67 x 10^-3)^2 * speed
speed =8.8514 x 10-5 /2.2396 x 10-5 m/s
speed = 3.95 m/s
Answer:
5.03 m
Explanation:
The wavelength of a wave is given by
where
v is the speed of the wave
f is the frequency of the wave
For the sonar signal in this problem,
Substituting into the equation, we find the wavelength:
