7. Find the speed of a 22 kg mass with a momentum of 450 kgm/s. (Round
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Yes.
In fact, from the graph we see that the threshold frequency (the minimum energy of the incoming energy needed to extract a photoelectron from the material) is (we see it because this is the frequency at which the maximum kinetic energy of the emitted electron is zero).
The incoming photon in this problem has a frequency of 8.0 E14 Hz, so above the threshold frequency, therefore it is enough to extract photoelectrons from the material.
use Newton's gravitational law and 2nd law .....
Answer:
75457.54816 N
Explanation:
= Initial force
= Weight of car = 11547.83 N
= Smaller radius = 5 cm
= Larger radius = 19.56 cm
From Pascal's law we have
The force is 754.57548 N