Answer:
Gamma rays
Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies.
Explanation:
Answer:
131.39863 m/s
683205.94 Joules
Explanation:
m = Mass of person = 80 kg
g = Acceleration due to gravity = 9.81 m/s²
h = Height of the drop = 880 m
v = Speed
= Maximum speed = 140 km/h
Here the Potential and Kinetic energies are conserved
The velocity of Fritz Strobl is 131.39863 m/s
Taking friction into consideration
The work done by friction is 683205.94 Joules
Answer: 12.12 m
Explanation:
We have the following data:
is the speed of the water wave
is the frequency of the water wave
Now, the speed of a wave is given by the following equation:
Where is the wavelength.
Isolating :
Finally:
This is the water wave wavelength
Answer:
728 N
Explanation:
= length of the wire = 0.680 m
= mass of the steel wire = 0.0046 kg
= Fundamental frequency = 261.6 Hz
= tension force in the steel wire
Fundamental frequency in wire is given as
Answer:
7.72 Liters
Explanation:
normal body temperature = T_body =37° C
temperature of ice water = T_ice =0°c
specfic heat of water = c_{water} =4186J/kg.°C
if the person drink 1 liter of cold water mass of water is = m = 1.0kg
heat lost by body is Qwater =mc_{water} ΔT
= mc{water} ( T_ice - T_body)
= 1.0×4186× (0 -37)
= -154.882 ×10^3 J
here negative sign indicates the energy lost by body in metabolic process energy expended due to brisk - hour long walk is Q_{walk} = 286 kilocalories
= 286×4186J
so number of liters of ice water have to drink is
n×Q_{water} =Q_{walk} n= Q_{walk}/ Q_{water}
= 286×4186J/154.882×10^3 J
= 7.72 Liters