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A solar collector that can provide 1.0W of power forcharging the 3.0V batteries. What is the maximum charging current the solar collector could supply to fully discharged 3.0V bateries. what is the power dissipated by the light at night if the current is 30mA ?
Water flowing through a garden hose of diameter 2.79 cm fills a 21.0-L bucket in 1.10 min. What is the speed of the water leaving the end of the hose
You've signed up for a trip to Mars. After being cooped up in the tight space capsule for months, you are very excited to finally arrive and take a standing leap straight upward. How high will you jump
A river flows south with a velocity of 20 km/h. A boat has a maximum speed of 50 km/h in still water. In the river, at maximum throttle, the boat heads due west. What are the resultant speed and direction of the boat?
When you look down into a swimming pool or lake, are youlikely to underestimate or overestimate its depth? Explain. How does the apparent depth vary with the viewing angle
In the Bohr model of the hydrogen atom, an electron in the 7th excited state moves at a speed of 4.47 104 m/s in a circular path having a radius of 2.59 10-9 m
electrons ( mass m, charge -e) are accelerated from restthrough a petential difference V and are then deflected by amagnetic field B(vector) that is perpendicular to theirvelocity. What is the radius of the resulting electron trajectory
A 55.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 460 kg · m2 and a radius of 2.00 m. With what angular speed does the turntable rotate
COnsider a bimetallic strip consisting of a 0.5mm thick brass upper strip welded to a 0.5mm thick steel lower strip. What is the length of the strip at its original position
What is the charge on negative electrode. Find out the wavelength.
Part A-Power lines carry electricity at about 120,000 volts. If a power line were stepped down by a transformer to 120 volts, how many turns would there be on the secondary coil if there were 1000 turns on the primary? Show calculations. Part B-If..
A 20.0micro F capacitor is charged by a 155.0-V power supply, then disconnected from the power and connected in series with a 0.280-mH inductor, Calculate the oscillation frequency of the circuit
A cylinder (I = MR^2/2) is rolling along the ground at 7m/s. It comes to a hill and starts going up. Assume no losses to friction, how high does it get before it stops.
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