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The specific heat of a certain metal can be determined by measuring the temperature change that occurs when a piece of the metal is heated and then placed in an insulated container that is made of the same material and contains water. Suppose the piece of metal has a mass of 105 g and is initially at 100 °C. The container has a mass of 237 g and contains 457 g of water at an initial temperature of 20.0 °C. The final temperature is 21.4 °C. What is the specific heat of the metal?
A series RLC circuit has a peak current of 1.0 A with a frequency of 54 kHz. If the resistance of the circuit is 51 k??, determine the average power of the circuit
Two identical guitar strings are prepared such that they have the same length (1.91 m) and are under the same amount of tension, What is the wave propagation speed on the guitar strings
What would the average wind speed (in m/s) for this month be at a height of 80 m if this site experiences a wind shear condition which matches a logarithmic law with a surface roughness of 0.1 m? f. Based on the roughness noted in e) above, how wo..
A long, straight wire carries a current of 48.9 A. The magnetic field produced by this current at a certain point is 7.80E-5 T. How far is the point from the wire
A highway patrolman sends a 24.150-GHz radar beam towards a speeding car. The reflected wave is lower in frequency by 4.04-kHZ
A man pulls a crate of mass 75.0 kg across a level floor. He pulls with a force of 180.0 N at an angle of 26.0° above the horizontal. When the crate is moving, the frictional force between the floor and the crate has a magnitude of 130.0 N. If the cr..
How many 185 W lightbulbs can you use in a 191 V circuit without tripping a 15 A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each lightbulb is 131 V.)
What must the constant acceleration of the car be after the brakes are applied so that the car would come to rest at the stop sign.
A vertical container with base area measuring 16 cm by 18 cm is being filled with identical pieces of candy, each with a volume of 50 mm3 and a mass of 0.020g. Suppose that the volume of the empty spaces between candies is negligible.
In an experiment, a 1.5 kg lab cart moving to the right at 0.080 m/s collides with a 0.5kg lab cart moving to the right at 1.3 m/s. How fast is the 0.5 kg lab cart moving after the collision
A steel wire in a piano has a length of 0.60- m and a mass of 4.5 x10-3 kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to middle C (fC = 261.6 Hz on the chromatic musical scale).
Calculate the rates of solar heating
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