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A certain toaster has a heating element made of Nichrome resistancewire. When the toaster is first connected to a 140 V source of potential difference (and the wireis at a temperature of 20.0°C), the initial current is 1.7 A.However, the current begins to decrease as the resistive elementwarms up. When the toaster reaches its final operating temperature,the current has dropped to 1.53 A.
(a) Find the power the toaster converts when itis at its operating temperature.
W
(b) What is the final temperature of the heating element?
°C
A large storage tank is filled to a height 81 cm. The tank is punctured with a small hole at a heiht of 38 cm from the bottom of the tank. How far from the tank will the stream land
Portray how asynchronous simulation can be used to predict the motions of this system and outline the data structures that would be necessary to implement such a program.
A person travels by car from one city to another. She drivesfor 21.1 minat 66.4km/h, 14.3min at 86.1km/h, 51.4at 46.8km/h, Determine the distance between the cities along this route
A parallel-plate capacitor has 3.95 cm2 plates that are separated by 4.29 mm with air between them. If a 11.2 V battery is connected to this capacitor, how much energy does it store? The value of the permittivity of a vacuum is 8.8542 × 10 ^?12 C^..
A sample containing beryllium (atomic mass 9 u), aluminum (27 u), and an unknown element is placed in a mass spectrometer. What is the mass of the unknown element
What is the speed and total energy of an electron whose kinetic energy is 3 times its rest energy
A sanding disk with rotational inertia 2.0 multiply.gif 10-3 kg·m2 is attached to an electric drill whose motor delivers a torque of 8 N·m about the central axis of the disk. compute the angular momentum of the disk
A sled weighs 10.0 kg. It is held in place on a frictionless 20.0-degree slope by a rope attached to a stake at the top of the slope. Find the tension in the rope if it is parallel to the slope
A fire hose held near the ground shoots water at a speed of 6.2 m/s.At what angle(s) should the nozzle point in order that the water would land 2.5 m away.
An 18.8 cm screwdriver is used to pry open a can of paint. If the axis of rotation is 2.78 cm from the end of the screwdriver blade, what force is applied to the lid
A plane is headed due west with an air speed of 224 m/s. The wind blows south at 19.0 m/s. Find the velocity of the plane relative to the earth
A jet airplane in level flight has a mass of 8.65 104 kg, and the two wings have an estimated total area of 94.0 m2. what is the speed of the air over the wings
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