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A certain brand of hot dog cooker applies a potential dissimilarity (120 V) to opposite ends of the hot dog and cooks by means of the joule heat produced. If 60 kJ is needed to cook all hot dog, what current is essential to cook four hot dogs simultaneously in 3.0 min?
A 0.36-kg object connected to a light spring with a force constant of 24.4 N/m oscillates on a frictionless horizontal surface. Determine the maximum speed of the object
A wheel 40.0 cm in diameteraccelerates uniformly from 200 rpm to385 rpm in 5.0 s. How far will a point on the edge of the wheel have traveled in this time
150 g of ice at -10.5 oC is raised to the melting point and then raised to 76.0 oC. How much heat is added to the system
A nearsighted person wears glasses to correct the problem. The lenses in the glasses have a focal length of -520 cm, How far from the eyes is the person's far point located
Suppose the peak of a particular star's spectrum occurs at about 6000 Å (Angstrom). (a) Use Wien's law to calculate the star's surface temperature. (b) If this star were a factor of four hotter, at what wavelength would its spectrum peak? In what ..
A stone takes 0.28s to travel past a window 2.2m tall. From what height above top of the window did the stone fall?
Find the total work done on the car
When a converging lens is used in a camera (as in the top figure), the film must be at a distance of 0.210 m from the lens to record an image of an object that is 4.00 m from the lens. How far from the projector lens should the film be placed
An emf of 32 V is applied to a coil with an inductance of 34 mH and a resistance of 0.20 ?. How long does it take for the current to reach this value
The mass of a roller-coaster car, including its passengers, is 495kg. Its speed at the bottom of the track in the figure below is 17.00 m/s. The radius of this section of track is r1 = 26 m. Find the force that a seat in the roller-coaster car exerts..
A laser pulse has an energy of 24 J and a beam radius of 2 mm. Find the rms values of the electric and magnetic fields in the pulse
a field goal kicker kicks a field goal in football game. Kicker kicks ball from the ground. Foodball has initial speedof 25 m/s when it leaves the ground. What is speed of ball when it reaches fan
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