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A coil is connected to a 60 Hz ac generator with a peak emf equal to 80 V. At this frequency the coil has an impedance of 14 and a reactance of 12 .
(a) What is the peak current in the coil?
(b) What is the phase angle between the current and the applied voltage?
(c) A capacitor is put into series with the coil and the generator. What capacitance is required so that the current is in phase with the generator emf?
(d) What then is the peak voltage measured across the capacitor?
An ideal which and pulley system is used to haul a box of books (m=50kg) up a ramp as shown in Figure 2. The ramp makes an angle of 20degree with respect to the horizontal. What is the value of the tension in the winch rope
A compound microscope has objective and eyepiece focal lengths of 6.0mm and 1.7cm , respectively. If the lenses are 8.5 apart, what is the magnification of the instrument?
a c-glass filament reinforced epoxy composite contains 65 vol filaments and has a density of 2.24 mgm3. if the c-glass
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Jason takes off across level water on his jet-powered skis. The combined mass of Jason and skis is 75 kg (the mass of the fuel is negligible). What was his maximum speed
The bullet first passes through the left disk and then through the right disk. It is found that the angular displacement between the two bullet holes is θ = 0.320 rad. From these data, evaluate the speed of the bullet.
Find the equation for the acceleration of the moving body at any time.
A rectangular fish tank measures 25 cm by 70 cm by 40 cm high. The tank is filled with water to a depth of 37 cm. What is the pressure at the bottom due to the water? What is the total force of the water on the bottom?
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