Answer:
x is vertical and y is horizontal
Explanation:
Answer:
Coaches plan, conduct, and evaluate the team on a regular basis. They are the leaders of the team, so they help motivate the players. They are able to communicate with the athletes and determine the best learning styles for each player.
Explanation:
In collision that are categorized as elastic, the total kinetic energy of the system is preserved such that,
KE1 = KE2
The kinetic energy of the system before the collision is solved below.
KE1 = (0.5)(25)(20)² + (0.5)(10g)(15)²
KE1 = 6125 g cm²/s²
This value should also be equal to KE2, which can be calculated using the conditions after the collision.
KE2 = 6125 g cm²/s² = (0.5)(10)(22.1)² + (0.5)(25)(x²)
The value of x from the equation is 17.16 cm/s.
Hence, the answer is 17.16 cm/s.
Answer:
C. 0.25J
Explanation:
Energy stored in the magnetic field of the inductor is expressed as E = 1/2LI² where;
L is the inductance
I is the current flowing in the inductor
Given parameters
L = 20mH = 20×10^-3H
I = 5A
Required
Energy stored in the magnetic field.
E = 1/2 × 20×10^-3 × 5²
E = 1/2 × 20×10^-3 × 25
E = 10×10^-3 × 25
E = 0.01 × 25
E = 0.25Joules.
Hence the energy stored in the magnetic field of this inductor is 0.25Joules
Answer: ![0.75\ cm](https://tex.z-dn.net/?f=0.75%5C%20cm)
Explanation:
Given
Wavelength of light ![\lambda=500\ nm](https://tex.z-dn.net/?f=%5Clambda%3D500%5C%20nm)
Screen is
away
Distance between two adjacent bright fringe is ![\Delta y=\dfrac{\lambda D}{d}](https://tex.z-dn.net/?f=%5CDelta%20y%3D%5Cdfrac%7B%5Clambda%20D%7D%7Bd%7D)
When same experiment done in water, wavelength reduce to ![\dfrac{\lambda }{\mu}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Clambda%20%7D%7B%5Cmu%7D)
So, the distance between the two adjacent bright fringe is ![\Delta y'=\dfrac{\lambda D}{\mu d}](https://tex.z-dn.net/?f=%5CDelta%20y%27%3D%5Cdfrac%7B%5Clambda%20D%7D%7B%5Cmu%20d%7D)
Keeping other factor same, distance becomes
![\Rightarrow \dfrac{1}{\frac{4}{3}}=\dfrac{3}{4}\quad \text{Refractive index of water is }\dfrac{4}{3}\\\\\Rightarrow 0.75\ cm](https://tex.z-dn.net/?f=%5CRightarrow%20%5Cdfrac%7B1%7D%7B%5Cfrac%7B4%7D%7B3%7D%7D%3D%5Cdfrac%7B3%7D%7B4%7D%5Cquad%20%5Ctext%7BRefractive%20index%20of%20water%20is%20%7D%5Cdfrac%7B4%7D%7B3%7D%5C%5C%5C%5C%5CRightarrow%200.75%5C%20cm)