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A car owner forgets to turn off the headlights of his car while it is parked in his garage. If the 12.17 V battery in his car is rated at 100 A · h and each headlight requires 33 W of power, how long will it take the battery to completely discharge?
If the shot is made from a horizontal distance of 5.10m and must be accurate to plus/minus 0.23m (horizontally) what is the range of initial speeds allowed to make a basket
A 8 kg stone is dropped from a height of 170 m. Find its kinetic and potential energies when it is halfway to the ground
An ideal polarizer with its transmission axis rotated 30.5 to the vertical is placed in a beam of unpolarized light of intensity 10 W/m ^2. After passing through the polarizer, what is the intensity of the beam
A 2.75-gram air inflated balloon is given an excess negative charge, q1 = -3.00 × 10-8 C, by rubbing it with a blanket. It is found that a charged rod can be held above the balloon at a distance of d = 5.20 cm to make the balloon float. In order f..
If the moment of inertia of the wheel about its axle is 0.30kg*m2, what is the magnitude of the frictional torque.
The primary coil of a transformer has 237 turns; secondary coil has 2100 turns. An alternating current is sent through the primary coil. The emf in the primary is 25 V. What is the emf amplitude in secondary.
What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to four times the Earth's radius before coming to rest momentarily
In a series R-L-C circuit, R = 280? , XC = 240?and XL = 600? . The average power consumed in the resistor is 60.0W, What is the power factor of the circuit
A woman at an airport is towing her 15.0-kg suitcase at constant speed by pulling on a strap at an angle ? above the horizontal. What angle does the strap make with the horizontal
An extension cord made of two wires of diameter 0.129cm (no. 16 copper wire) and of length 2.2m is connected to an electric heater which draws 17.0 A on a 120V- line, How much power is dissipated in the cord
White light containing wavelengths from 405 nm to 760 nm falls on a grating with 8000 lines/cm. How wide is the first-order spectrum on a screen 2.20m away.
A novice skier, starting from rest, slides down a frictionless 37.0° incline whose vertical height is 175 m. Explain how fast is she going when she reaches the bottom?
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