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A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.703 A) sin [(257 rad/s)t].
(a) What is the frequency of the alternating current?
(b) Determine the resistance of the bulb's filament.
(c) What is the average power delivered to the light bulb?
Find speed of the block at the bottom of the ramp. What is tangential acceleration of a bug on the rim of a 78 rpm record of diameter 7.41 in. if the record moves from rest to its final angular speed in 4 s.
In a primary coil the current is initially 3.4 A. After a time of 0.14s, the current will change to 1.6A. What is the mutual inductance of the coils
Vector Identiteis can be proven by grinding them out in component form, but it is more satisfying to use methods based on the integral theorems (Divergence, Stokes etc). Using both approaches
A gun shoots bullets that leave the muzzle with a speed of 338 m/s. If a bullet is to hit a target 104-m away at the level of the muzzle, the gun should be aimed at a point above the goal.
A quasar 10 billion light years from Earth appears the same brightness as a star 5.9*10^4 light years away. How does the power ouput of the quasar compare with that of the star
Your thoughts about illustrate what information is critical to collect at the outset of or early on in the interview process. Explain the upsides and downsides/concerns of having to gather this information and address related issues in a first se..
Light is incident on a thin prism for which n= 1.5. Find the angle of deviation for the emerging beam
A 400 g lemming (does anyone remember that old computer game?) waddles horizontally off a small 4.90 m high cliff with a speed of 0.5 ms-1.How far from the base of the cliff will the lemming land? What will be the lemmings speed upon landing.
A sheet of plywood 1.39 cm thick is used to make a cabinet door 55.5 cm wide by 69.5 cm tall, what is the moment of inertia of the door about the hinges
A 100 W point source radiates yellowish-green light of wavelength 555 nm uniformly in all directions. how far from the source could the light be detected
A bolt is to be tightened with a torque of 8.0 Nm. what is the least amount of force you must exert
The average banana contains 0.436 g of potassium, and 0.012% of naturally occuring potassium is 40K, What is the activity of a freshly picked bunch containing four bananas
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