What is de Broglie's hypothesis ? Make sure to be specific (qualitative and quantitative)
1 answer:
Answer and Explanation:
DE BROGLIE 'S HYPOTHESIS :
- According to De broglie the matter have dual nature it can behave as particle as well as wave
- According to this hypothesis all matter have wave like property and having wavelength.
- The de broglie wavelength is given by
here h is plank's constant and P is momentum
- This hypothesis determines the probability of finding the object at a give point
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Answer:
Fnet = 0
Explanation:
- Since the block slides across the floor at constant speed, this means that it's not accelerated.
- According Newton's 2nd Law, if the acceleration is zero, the net force on the sliding mass must be zero.
- This means that there must be a friction force opposing to the horizontal component of the applied force, equal in magnitude to it:
- In the vertical direction, the block is not accelerated either, so the sum of the normal force and the vertical component of the applied force, must be equal in magnitude to the force of gravity on the block:
⇒ 169 N + Fn = Fg = 216 N (3)
- This means that there must be a normal force equal to the difference between Fappy and Fg, as follows:
- Fn = 216 N - 169 N = 47 N (4)