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An aluminium cup contains 225 g of water and a 40 g copper stirrer, all at 27°C. A 400 g sample of silver at an initial temperature of 90°C is placed in the water. The stirrer is utilized to stir the mixture gently until it reaches its final equilibrium temperature of 32°C. Compute the mass of the aluminium cup.
A college student produces about 135 kcal of heat per hour on the average. What is the rate of energy production in watts
An energy-efficient lightbulb, taking in 24.0 W of power, can produce the same level of brightness as a conventional lightbulb operating at power 100 W. The lifetime of the energy-efficient bulb is 10 000 h and its purchase price is $4.20, whereas..
A tank of argon gas has a volume of 0.0160 m3. The gas has a pressure of 5.00 atm and a temperature of 293 K. Find the final temperature and volume of the gas
A science-fair radio uses a homemade capacitor made of two 45 cm by 45 cm sheets of aluminum foil separated by a 0.30-mm-thick sheet of paper, What is its capacitance
in one fusion research program a pellet of hydrogen isotopes will be heated and compressed with intense lasers. if a
Find out the velocity with which he strikes the water.
a toy cannon uses a spring to project a 5.39-g soft rubber ball. the spring is originally compressed by 4.93 cm and has
A good example of rotational motion is a ceiling fan. Assume the fan is rotating at a constant angular velocity of 100 rpm. Find the angular velocity
A 195g oscillator has a speed of 124cm/s when its displacement is 3.50cm and 55.0cm/s when its displacement is 6.90cm what is the oscillators max speed
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. (a) How many electrons are there in 9.42 liters of water? (1 liter is equivalent to 1.00 × 10-3 m3) (b) What is the net charge of all these electrons?
On a part-time job, you are asked to bring a cylindrical iron rod of length 93.0 centimeter and diameter 3.00 centimeter from a storage room to a machinist. Compute what is the weight of the rod
When spiking a volleyball, a player changes the velocity of the ball from 4.0m/s to -28m/s along a certain direction. what is the mass of the volleyball
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