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A heat engine operates in a Carnot cycle between 90.0°C and 360°C. It absorbs 20,400 J of energy per cycle from the hot reservoir. The duration of each cycle is 5.00 s.
(a) What is the mechanical power output of this engine?
(b) How much energy does it expel in each cycle by heat?
An airplane has an effective wing surface area of 15 m2 that is generating the lift force. What is the weight of the plane
A solid piece of lead has a mass of 29.18 g and a volume of 2.60 cm3. From these data, calculate the density of lead
A rock of mass m = 1.1 kg is tied to a string of length L = 2.5 m and is twirled in a vertical circle, what is the tension when the rock is at the bottom
A lamp (R=150), an electric heater (R=23), and a fan (R=50) are connected in parallel across a123V line. calculate the power is expended in the heater
A bowling ball with a mass of 6.8 kg strikes a stationary pin that has a mass of 1.6 kg. After the collision, the pin flies forward (in the positive x direction) with a speed of 7.3 m/s, and the ball continues forward at 3.2 m/s (in the positive x..
illustrate what minimum projection angle would achieve this result? What maximum pro- jection angle would achieve this result?
Now, a second resistor R2 of 3.2x10^5 ? is connected in parallel to the existing resistor in the circuit, What will be the new time constant
A particular organ pipe can resonate at 213 Hz, 355 Hz, and 497 Hz, but not at any other frequencies in between. What is the fundamental frequency of pipe.
A 5.83 m long ladder with mass 23.1 kg rests against a smooth wall. Find the force of friction between the ladder and the ground
circuit consists of a battery connected to three resistors (70 Ohms, 30 ohms, and 160 ohms) in parallel. The total current through the resistors is 1.9A. What is current through each resistor
A -3.07 ?C charge is placed at the center of a conducting spherical shell, and a total charge of +6.70 ?C is placed on the shell itself. Calculate the total charge on the outer surface of the conductor.
question1a 1.0-cm-tall object is 20 rm cm in front of a converging lens that has a 10 rm cm focal length. utilize ray
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