Answer:
The value is
Explanation:
From the question we are told that
The mass of the sphere is m = 18.5 kg
The diameter is
The number of electrons is
The mass of the plastic ball is
The initial acceleration of the ball is
Generally the radius of the sphere is mathematically evaluated as
=>
=>
Generally the force between the ball and the sphere is
Generally this force can also be mathematically represented as
So
Here is the charge removed from the sphere whicn is evaluated as
substituting for e
and is the charge to be removed from the ball
So
Generally the number of electron to be removed from the ball is mathematically represented as
=>
=>
Answer:
f = 687.85 Hz
Explanation:
Given that,
The wavelength of sound wave,
We need to find the frequency of the sound wave. The relation between wavelength and frequency is given by :
v is speed of sound at T = 35°C = 308.15 K
So,
So, the frequency of the sound is 687.85 Hz.
Answer:
Explanation:
Given
When the bulb is squeezed then liquid level rises to height h i.e. pressure decreases inside the bulb which causes rises in the tube
for common elevation i.e. at liquid level pressure must be equal therefore
for
for
Answer: Unstable nuclei spontaneously emit radiation in the form of particles and energy. This generally changes the number of protons and/or neutrons in the nucleus, resulting in a more stable nuclide. A nuclear reaction is a reaction that affects the nucleus of an atom.