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Three resistors with values 0.90? , 2.9? , and 4.2? are connected in parallel in a circuit with a 6.4V battery.
1) What is the total equivalent resistance?
2) What is the voltage across each resistor?
3) What is the power delivered to the 4.2? resistor?
A parallel-plate capacitor has a capacitance of c1 = 3.5 uF when filled with air and c2 = 23 uF when filled with a dielectric oil at potential difference of 12 V. What is the permittivity of this oil
Monochromatic light of variable wavelength is incident normally on a thin sheet of plastic film in air. The reflected light is a maximum only for 472.9 and 696.0 in the visible spectrum. What is the minimum thickness of the film.
How much work is done by an applied force that moves two charges of +5.0 µC that are initially very far apart to a distance of 4.6 cm apart?
A proton collides elastically with a stationary deuteron. If the proton is deflected by 37 degrees, what fraction of its kineti energy does it transfer to the deuteron.
assume a bar 2 m long expands 0.6 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated.
q1 = -2 ?C is at (-5cm, 3cm) and q2 = +8?C is at (0,0). Find the x component of the electric force exerted on q2 due to q1
You go to a gym and lift a 245-kg mass 2.13 m over the ground? You hold it for 10 seconds. How much work you did during the holding period
Find out the constant force that must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.20 s.opposite the fullback's direction of motion.
A bicyclist of mass 75 kg ( including the bicycle) can coast down a 4.0 degree hill at a constant speed of 10 km/h. Pumping hard,the cyclist can descend the hill at a speed of 30 km/h.
Kieran takes off down a 50m high, 10° slope on his jet-powered skis. The skis have a thrust of 320 N. The combined mass of skis and Kieran is 50 kg (the fuel mass is negligible). Kieran's speed at the bottom is 40 m/s. What is the coefficient of k..
A conical pendulum is formed by attaching a 0.400kg ball to a 1.00m -long string, then allowing the mass to move in a horizontal circle of radius 40.0cm, What is the ball's angular velocity, in rpm
Assuming that the bricks are lifted with constant speed, illustrate what is the minimum power the motor must produce?
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