Determine what will the final temperature be
Determine what will the final temperature be for a 5.00 gram silver ring at37 degrees Celsius if it gives off 25.0 J of heat to its surroundings? [sAg = 0.235 J/g degrees Celsius]
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The water temperature rises from 20.1 degrees Celsius to 22.6 degrees Celsius. A 23.9 gram sample of iridium metal is heated to 89.7 degrees Celsius and then dropped into the 20.0 grams of water in a Styrofoam coffee cup calorimeter.
A cyclist accelerates so that the tire goes from the angular speed of 1rad/s to an angular speed of around 3rad/s as he travels as he travels 18m on the road. (Suppose the tire rolls devoid of slipping). The tire's diameter is around 0.6m.
What will its temperature be after it absorbs 4.22 kJ from its surroundings when a 454 gram block of lead is at an initial temperature of 22.5degrees Celsius. [sPb = 0.128 J/g degrees Celsius]
A 28-year-old man pays $159 for one-year life insurance policy with coverage of $140,000. If the probability that he will live through the year is 0.9992, what is the expected value for the insurance policy?
The two positive point charges on the y-axis, each of which consists of a charge of around 5.0 x 10-9 C, are positioned at y = +0.40 m and y = -0.40 m. Determine the magnitude and direction of the resulting electric force acting on the charge of 8
Explain how much heat does it take to raise the temperature of 225 grams of water from the 25 degrees Celsius to 100 degrees Celsius?
A student forms a short electromagnet by winding 100 turns of wire around a wooden cylinder of diameter d = 2.0 cm. The coil is joined to a battery generating a current of 2.0 A in the wire. (i) Find out the magnetic moment of the device?
A quiz consists of 70 multiple choice questions, each with the five possible answers, only one of which is correct. Determine the mean and the standard deviation of the number of correct answers.
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