According to Newton's third law of motion, "The single ball on the left will move as high as the ball on the right was dropped" is the expected result once the ball hits the ball closest to it.
Answer: Option A
<u>Explanation:</u>
Newton’s cradle is the best example for law of conservation of momentum. So that means that energy or momentum exhibited by a particle can be transferred to its nearer object with equal force. So in the given options the first option is correct. As when the right ball is dropped it will collide with its neighboring ball and transfer energy.
By this transferring of energy from one particle to another, it will reach the leftmost ball. But there will be no loss in the energy as the left ball will move as high position as the ball on the right was dropped from. So that means the energy is conserved in the cradle.
Answer:
Q
Explanation:
To know which symbol defines the wavelength, we must know the definition of wavelength.
Wavelength can be defined as the distance between two successive crests (i.e the highest part) or troughs (the lowest part) of a wave.
Considering the diagram given above, Q shows the distance between two successive crests (i.e the highest part) of the wave. Therefore, Q is the wavelength of the wave given in the diagram above.
Answer:
7270.7 Pa
Explanation:
g = Acceleration due to gravity = 9.8 m/s²
= Density of liquid = 1025 kg/m³
h = Height = 90 cm
= Pressure =
= Viscosity = 0.001 Pas
l = Length of needle = 2 cm
r = Radius of needle = 0.2 mm
P = Absolute pressure
Q = Flow rate =
From Poiseuille's equation we have
This pressure is the absolute pressure
The average gauge pressure inside the vein where the needle is is 7270.7 Pa (ignoring the negative sign)