Explanation:
Energy loss through walls can be reduced using cavity wall insulation. This involves blowing insulating material into the gap between the brick and the inside wall, which reduces the loss by air circulating inside the cavity, therefore reducing loss by convection through the cavity.
At first glance, this statement seems to be true. But after about a
microsecond of further consideration, one realizes that the statement
would actually set Boyle spinning in his grave, and is false.
Boyle's law states that there is a firm relationship among the pressure,
temperature, and volume of an ideal gas, and that you can't say anything
about how any two of these quantities depend on each other, unless you
also say what's happening to the third one at the same time.
As the pressure of an ideal gas increases, the volume will decrease in
direct proportion to the volume, IF THE TEMPERATURE OF THE GAS
REMAINS CONSTANT.
If you wanted to, you could increase the pressure AND the volume of an
ideal gas both at the same time. You would just need to warm it enough
while you squeeze it.
The wavelength<span> in a </span>longitudinal wave<span> is probably the distance between two consecutive compressions or between two consecutive rarefactions. The amplitude is the maximum displacement from equilibrium. ... The amplitude is the distance from the equilibrium position of the medium to a compression or a rarefaction.</span>
Answer:
Explanation:
The fish will have horizontal velocity of 2.6 m/s which is also the velocity of eagle. Additionally , he will have vertical velocity due to fall under gravity .
v² = u² + 2 g H .
v² = 0 + 2 x 9.8 x 4.7 m
= 92.12
v = 9.6 m /s
The fish's final velocity will have two components
vertical component = 9.6 m/s downwards
Horizontal component = 2.6 m /s .
Resultant velocity = √ ( 9.6² + 2.6² )
= √ ( 92.16 + 6.76 )
= 9.9 m /s
Answer:
Vtennis = 134 [cm^3]; Vgolf = 40.76 [cm^3]
Explanation:
To solve this problem we must have the values of the radius or diameters of each of these balls, therefore performing an internet search we can appreciate that the diameters of these balls are:
Dt = 6.35[cm]
Dg = 4.27[cm]
But we need the radius, and we know that the radius is equal to the half of the diameter.
Rt = 3.175 [cm]
Rg = 2.135 [cm]
Now replacing this values in the given equation:
![V = \frac{4}{3} *\pi *r^{3}\\ V_{tennis}= \frac{4}{3} *\pi *(3.175)^{3}\\ V_{tennis}= 134.06[cm^3]\\\\ V_{golf}= \frac{4}{3} *\pi *(2.135)^{3}\\V_{golf}= 40.76 [cm^3]](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B4%7D%7B3%7D%20%2A%5Cpi%20%2Ar%5E%7B3%7D%5C%5C%20V_%7Btennis%7D%3D%20%5Cfrac%7B4%7D%7B3%7D%20%2A%5Cpi%20%2A%283.175%29%5E%7B3%7D%5C%5C%20V_%7Btennis%7D%3D%20134.06%5Bcm%5E3%5D%5C%5C%5C%5C%20V_%7Bgolf%7D%3D%20%5Cfrac%7B4%7D%7B3%7D%20%2A%5Cpi%20%2A%282.135%29%5E%7B3%7D%5C%5CV_%7Bgolf%7D%3D%2040.76%20%5Bcm%5E3%5D)
