<h2>Answer: about the same size of the gap
</h2>
Diffraction happens when a wave (mechanical or electromagnetic wave, in fact, any wave) meets an obstacle or a slit .When this occurs, the wave bends around the corners of the obstacle or passes through the opening of the slit that acts as an obstacle, forming multiple patterns with the shape of the aperture of the slit.
Note that the principal condition for the occurrence of this phenomena is that <u>the obstacle must be comparable in size (similar size) to the size of the wavelength.
</u>
<u></u>
In other words, <u>when the gap (or slit) size is larger than the wavelength</u>, the wave passes through the gap and does not spread out much on the other side, but when the gap size is equal to the wavelength, maximum diffraction occurs and the waves spread out greatly.
Therefore:
<h2>
Waves diffract the most when their wavelength is <u>about the same size of the gap</u>
</h2>
Explanation:
It is given that,
Density of asteroid,
Mass of asteroid,
We need to find the diameter of the asteroid. The formula of density is given by:
V is the volume of spherical shaped asteroid,
r = 2441311.12 m
Diameter = 2 × radius
d = 4882622.24 m
or
Hence, this is the required solution.
Part A.
To get the acceleration of the system we consider the two blocks as a single mass. For this situation we have, from Newton's second law, that:
where T is the tension in the upper sting and W is the weight of the system. Solving the equation for a we have:
Therefore the acceleration of the system is 2.42 meters per second per second.
Part B.
Now, that we have the acceleration of the system we analyze the lower block individually; for this block the equation of motion is:
where T' is the tension in the lower rope, W' is the weight of the lower block and m2 is its mass. Solving for the tension we have that:
Therefore the tension in the lower rope is 2.93 N
The eagle momentum : 320 kg.m/s
<h3>Further explanation</h3>
Given
mass = 32 kg
d = 100 m
t = 10 s
Required
The momentum
Solution
The velocity of the eagle :
The momentum (P) :
Answer:
Explanation:
Electrons will create negative and protons will create positive charge . 5.29 x 10⁶ electrons will neutralize same no of protons . So
( 7.07 - 5.29 ) x 10⁶ protons will create net positive charge
magnitude of this charge can be calculated as follows
no of protons x charge on one proton
(7.07 - 5.29)x 10⁶ x 1.6 x 10⁻¹⁹ C
2.848 X 10⁻¹³ C is the net charge on the sphere. Ans
b )
Protons and electrons have equal but opposite charges .
115 protons will neutralize the charge of 115 electrons .
225-115 = 110 electrons will remain un-neutralized .
Charge on these un-neutralized electrons will be calculated as follows .
no of electrons x charge on a single electrons
110 x 1.6 x 10⁻¹⁹ C
176 X 10⁻¹⁹C is the net charge on the sphere. Ans