Answer:
a)1.13×10³
b)1.6×10³
Explanation:
Given:
Boltzmann's constant (K)=1.38×10^-23 J/K
atmoic mass of helium = 4 AMU or 4×1.66×10^-27kg
a)The formula for RMS speed (Vrms) is given as
where
K= Boltzmann's constant
T= temperature
m=mass of the gas
b) RMS speed of helium when the temperature is doubled
Fossil fuels are things such as natural gas, petroleum, and coal and they are made from dead organisms containing organic molecules that release energy deep in the ground they are not renewable
Answer:
B) 1.2 m/s
Explanation:
Collision 1
Mr Ur + Mb Ub = (Mr+Mb) V
225 × 3 + 0 = (225 + 180 ) V
V = 675/ 405
1.67 kg.m/s
Collision 2
(Mr+Mb) V + Mg Ug = (Mr+Mb+Mg) V'
675 + 0 = 555 V'
V' = 1.2 m/s
Answer:
some amount of ambition is good for your motivation but excess ambition is dangerous.
Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.