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An inductor is connected to an AC power supply having a maximum output voltage of 7.00 Volt at a frequency of 380 Hertz. Compute what inductance is needed to keep the rms current less than 2.50 mA? (give the minimum value.) H
A molecule has a rotational inertis of 14,000 u.pm^2 and isspinning at an angular speed of 4.3 X 10^12 rad/s. Calculate the rotational kinetic energy inelectron-volts
an object has a kinetic energy of 312 J and a momentum of magnitude 20.3 kg × m / s 1, find the speed of the object
a coil of wire is connected to an ideal 6.0-v battery at t 0. at t 10.3 ms the current in the coil is 200 ma. one
A seasoned mini golfer is trying to make par on a tricky hole #5, at what speed must the golfer hit the ball to land the ball in the hole
A spaceship heads away from earth at 0.20C. The ship beams 400nm light towards Earth. What is the wavelength of light received by the ship
Ultraviolet light is incident normally on the surface of a certain substance. The binding energy of the electrons in this substance is 3.44 eV. The incident light has an intensity of 0.063 W/m2
A block and tackle consisting of two fixed pulleys and one moveable pulley is used to lift a stone weighing 1200 N. the force required is 476 N. compute the efficiency of the block and tackle, the actual mechanical advantage and the ideal mechanical ..
In designing a machine part, you need a spring that is 8.45 cm long when no forces act on it and that will store 24.0 J of energy when it is compressed by 2.50 cm from its equilibrium position
The lens-to-retina distance of a patient is 0.0201m and the totally relaxed strength of her eye is 50.0D. (a) What lens strength will correct her distant vision? (b) If the eye has an 8% ability to accommodate, what will be the closest object she can..
Biologically usefull technetium nucleuii (at wt 99) have half life of 6 hours. A solution containing 10^-12 gram of this is injected into the bladder of a patient.
When 195 g of a substance is heated to 335°C and then plunged into a 100 g aluminum calorimeter cup containing 134 g of water at 13.0°C, What is the specific heat of the substance
The observed frequency of a train whistle is 475Hz as it approaches a stationary observer and is 410Hz as it recedes
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