Answer:
a)
b)
Explanation:
First, we need to obtain the linear momentum of the photons of wavelength 350nm.
We are going to use the following formula:
So the linear momentum is given by:
Having the linear momentum of the photon, we can calculate the speed of the hydrogen molecule to have the same momentum, we can use the classic formula for that:
The mass of the hydrogen molecule is given by:
What we've done here is to use the molecular weight of the hydrogen, and covert it kilograms, we had to multiply by two because the hydrogen molecule is found in pairs.
so:
Answer:
Tension in the wire= 1837.5 N
Explanation:
The answer along with solution can be found in the image attached.
v = u + at where v = final speed, u = initial speed , a = acceleration and t = time.
so here final speed v = 30 + 2*4 = 38 m/sec. answer
Distance travelled during this time
= (30 + 38) * 4 / 2 = 68 * 2 = 136 m answer
Answer: The distance between the man and the plane increasing at a rate of 400ft/s
Explanation: Please see the attachments below