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Think about the reflection of TE polarized wave from the boundary among two media. For the angle of incidence θ=60 the amplitude reflection coefficient is equal to r. discover (express through r) the amplitude reflection coefficient in the case of normal incidence (θ=0)
A tuning fork with a frequency if 536 Hz is placed near the top of a tube opened at one end and closed at the other end. The water level is lowered so that the length of the air column slowly increases from an initial value of 20.25cm. Determine the ..
A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N2/N1 for a particular transformer used in a CD player is 4:57. find the power delivered to the CD player
A block of rock has dimensions of 2m x 2m x 2m and a density of 3000kg/m^3. The weight of the rock produces a normal stress on its bottom side. Calculate the magnitude of the normal stress on this side.
A base on Planet X fires a missile toward an oncoming space fighter. The missile's speed according to the base is 0.81 c. How fast is the space fighter traveling relative to Planet X
A golfer imparts a speed of 27.3m/s to a ball, and it travels the maximum possible distance before landing on the green. How much time does the ball spend in the air
A slingshot fires a pebble that is in the air for 5.30seconds. It lands 73.0m away from where it was initially shot. Determine the initial horizontal and vertical components of the velocity
You combine two thin lenses by placing them in contact so that their axes coincide, forming what is called a compound lens. The focal lengths of the lenses are 24.1 cm and –53.9 cm, respectively. Find the focal length of this compound lens?__________..
A series RLC circuit is connected across a 10.0 kHz source. The 1.2 H inductor and 1000 ? resistor are fixed whereas the capacitor is variable. At what capacitance will the current in the resistor be a maximum
A 118 kg fullback runs at the line of scrimmage. How fast was he running initially
Determine the direction of the net electrostatic force on charge q3 (angle with respect to the positive x-axis).
Menthol is a crystalline substance with a peppermint taste and odor. When 1.45 g of menthol is dissolved in 25.0 g of cyclohexane, Calculate the molar mass of menthol
Two ropes are attached to a heavy box to pull it along the floor. One rope applies a force of 438 newtons (N) in a direction due west; the other applies a force of 402N in a direction due south.
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