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A 250g ice cube at -10?C is placed in an aluminum cup whose initial temperature is 70?C. The system comes to an equilibrium temperature of 20?C. what is the mass of the cup
Objects A and B are on a horizontal surface. Object A exerts a force on object B, and, in accordance with the laws of motion, generates a reaction force.
A Norwich MCE student is involved in a crucial out of class experiment. He is in his dorm room 34 feet above an historic rock wall. Describe the final result and state any assumptions that you need to make. Would the final result be any different o..
Find out the tension in the rope
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^..
The threshold of dark-adapted (scotopic) vision is 6 multiplied by 10-11 W/m2 at a central wavelength of 550 nm. If light with this intensity and wavelength enters the eye when the pupil is open to its maximum diameter of 7.5mm, how many photons p..
Estimate the initial speed of that car assuming a level road.What would be the equilibrium temperature when a 252 block of copper at 275 is placed in a 136 aluminum calorimeter cup containing 807 of water at 14.90.
Two particles with masses m and 3m are moving toward each other along the x axis with the similar initial speeds vi. Particle m is traveling to the left, while particle 3m is traveling to the right.
At a soft drink dispenser, a restaurant patron put 0.2 kg of crushed water ice, at a temperature of ?5 C, into an insulating cup. [In fact, the ice was slightly colder before it left the machine, but its warming to ?5 C cooled the inside surface o..
A shopper walks from the door of the mall to her car 310m down the lane of cars, then turns 90° to the right and walks an additional 70m. What is the magnitude of the displacement of her car from the mall door.
A college campus features a large fountain surrounded by the circular pool. Two students start at the northernmost point of pool and walk slowly around it in opposite directions.
What is the charge on each electrode.
A partcile is moving along the x-axis has a position given by x=(24t-2.0t^3)m, where t is measured in seconds. What is the magnitude of the acceleration of the particle at the instant when its velocity is zero?
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