Answer:
AM(amplitude modulation) and FM(frequency modulation)
Explanation:
A radio frequency band is a small adjacent section of the radio spectrum frequencies, whereby channels are usually used or set aside to be used.
They are usually of two different bands called AM which is known as amplitude modulation and FM which is known as frequency modulation
Answer:
The maximum speed the stone can attain without breaking the string is 7.416 m/s
Explanation:
Given;
mass of the stone, m = 0.600 kg
length of string, L = 0.600 m
maximum tension on the string, T = 55.0 N
Total force acting on the stone in horizontal direction is given as;
∑![F_x =T =\frac{mv^2}{r}](https://tex.z-dn.net/?f=F_x%20%3DT%20%3D%5Cfrac%7Bmv%5E2%7D%7Br%7D)
This force corresponds to maximum tension on the string;
![T_{max} =m\frac{v_{max}^2}{r}](https://tex.z-dn.net/?f=T_%7Bmax%7D%20%3Dm%5Cfrac%7Bv_%7Bmax%7D%5E2%7D%7Br%7D)
where;
m is the mass of the stone
is the maximum speed the stone can attain without breaking the string, which corresponds to maximum tension on the string.
r is radius of the circular path of the string
![v_{max}^2 = \frac{Tr}{m} \\\\v_{max} = \sqrt{\frac{Tr}{m}} \\\\v_{max} = \sqrt{\frac{55*0.6}{0.6}} = 7.416 \ m/s](https://tex.z-dn.net/?f=v_%7Bmax%7D%5E2%20%3D%20%5Cfrac%7BTr%7D%7Bm%7D%20%20%5C%5C%5C%5Cv_%7Bmax%7D%20%3D%20%5Csqrt%7B%5Cfrac%7BTr%7D%7Bm%7D%7D%20%5C%5C%5C%5Cv_%7Bmax%7D%20%3D%20%5Csqrt%7B%5Cfrac%7B55%2A0.6%7D%7B0.6%7D%7D%20%3D%207.416%20%5C%20m%2Fs)
The maximum speed the stone can attain without breaking the string is 7.416 m/s
Answer:
Grades ... gravity affects them and the potential energy is converted into kinetic energy. Watching a Slinky move down the stairs or vibrating while ... and kinetic energy, and finally into sound waves.
Explanation:
Control: The group that does not receive the IV
IV: What the scientist changes
DV: What changes because of the IV
Answer:
312 kJ
Explanation:
The thermal energy contained in a cubic meter of air at room temperature (20 C) and one atmosphere (101 kPa) would be.
H = Cv * T + p * V
Being
Cv: specific heat of air at constant volme (0.72 kJ/(kg*K))
T: temperature in absolute scale (20C is 293 K)
Then:
H = 0.72 * 293 + 101 * 1 = 312 kJ
The only way to extract thermal energy from a body and turn it into useful work (such as charging a phone) is to exchange heat with it and a another colder body. So, with just the air at room temperature it is impossible to extract its heat energy.