Thermal energy in the form of fire is generated by the combustion of fuel. Due to the tendency of hot air to rise upward, the heat generated rises to fill the space of the balloon. One this space is full of trapped hot air, the heat's tendency to rise causes the hot air balloon to be lifted into the air.
Answer:
0.913
Explanation:
k.e=1/2mv square
k.e=1/2×0.078g×23.4256m/s square
k.e=0.913J
This can be soved using pathagorian theorm
square root d= under root of (square root of x+square root of y). it is 509 approximately
Answer:
Mass of the string, m = 37.7 grams
Explanation:
It is given that,
Length of the string, l = 1.7 m
Tension in the string, T = 22 N
Time taken by the string,
The speed in the wave in the string is given by the following formula as :
is the mass per unit length,
Also,
m = 0.0377 kg
or
m = 37.7 grams
So, the mass of the strings is 37.7 grams. Hence, this is the required solution.