Answer:
roughly 2.2 atm
Explanation:
using Boyle's law (P1V1=P2V2),
73×1.3=43×x
x= 2.21 or 2.2 atm
You would have to subtract the mass number with atomic number which will give you 119 number of neutrons.
Answer: The correct answer is Option d.
Explanation:
Formula for Hooke's Law states that:

where, F = Force applied = 2N
k = spring constant = 4 N/cm
x = displacement of the spring from equilibrium position = ? cm
Putting values in above equation, we calculate the displacement or distance of the spring, we get:

Hence, the correct option is Option d.
Answer:
wavelength is 20.71 cm
Explanation:
given data
wave = 43.0 vibrations
time = 29 s
wave travels = 430 cm
time t2 = 14 s
to find out
wavelength
solution
we know here wavelength formula that is
wavelength = velocity / frequency .........................1
here frequency = 43 / 29 = 1.4827 Hz
and velocity = 430 / 14 = 30.71 cm/s
so here from equation 1 put all value
wavelength = velocity / frequency
wavelength = 30.71 / 1.4827
wavelength = 20.71 cm
so wavelength is 20.71 cm