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A 20.0-\Omega lamp and a 5.0-\Omega lamp are connected in series and placed across a potential difference of 50.0 V. What is
1. The current in the circuit?
2. The power dissipated in each lamp?
3. The voltage drop across each lamp?
4. The equivalent resistance of the circuit?
A 3.4 x 105 kg airplane is flying horizontally at a height of 6.0 km with constant velocity. What is the amount of lifting force created by the plane's wings
A hanging wire made of an alloy of aluminum with diameter 0.12 cm is initially 2.8 m long. When a 40 kg mass is hung from it, the wire stretches an amount 1.57 cm. A mole of aluminum has a mass of 27 grams, and its density is 2.7 g/cm3.
A dipole consist Of two charges Of opposite sign And each charge has a magnitude 7.20E-18C. compute the magnitude of the torque(in newton-meters) on the dipole
A 80.1-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.77 rad/s. Find the angular velocity of the platform with its load
a 1200-kg truck moving at 20m/s to the right collides with a 1000-kg car moving at 25 m/s to the left immediately after the collision, what is the speed and direction of the car
An uncharged capacitor and a resistor are connected in series to a source of emf. If emf = 10.00 V, C = 19.0 µF, and R = 100 ?, find the maximum change on the capacitor
two 2.20 cm x 2.20 cm plates that form a parallel-plate capacitor are charged to -0.708 nc . what is the electric field
two stationary positive point charges charge 1 of magnitude 3.60 nc and charge 2 of magnitude 1.60 nc are separated by
Monochromatic light is normally incident on a diffraction grating that is 1 cm wide and has 10,000 slits. What is the wavelength, in nm, of the incident light
The attractive electrostatic force between the point charges 7.35x10^-6C and Q has a magnitude of 0.400N when the separation between the charges is 2.92m. Find the sign and magnitude of the charge Q.
As a hiker in Glacier National Park, you are looking for a way to keep the bears from getting at your supply of food. What will be the acceleration of the bags when you let go of the anchor bag
A motorcycle and 59.5 kilogram rider accelerate at 3.0 m/s2 up a ramp inclined 10 degree above the horizontal. Obtain the magnitude of the net force on the rider
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