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A particular heat engine has a mechanical power output of 6.00 kW and an efficiency of 28.0%, Find the energy taken in during each cycle
Assuming the sun to radiate like an idea thermal source at a tempterature of 6000 K, What fraction of the total solar radiation
Nichrome wire of cross-sectional radius 0.753 mm is to be used in winding a heating coil, Find the required resistance of the coil
A potential difference of 13 V is found to produce a current of 0.45 A in a 2.7 m length of wire, Find the resistance and resistivity of the wire
Suppose after charging a 4 µF capacitor to 8 V, you connect it to the second uncharged capacitor of 7 µF. What voltage will your voltmeter read across the second capacitor
Three charges, q1=2.0x10^-8 C, q2= -3.0x10^-8 C, and q3= -4.0x10^-8 C, are located on the y-axis, Find the resultant force exerted on the third charge q3 by the other two charges
An electron initially at rest moves from one plate of a capacitor to another, through a potential di?erence of 2476 V, Find the speed with which the electron strikes the positive plate
Two waves are generated on a string of length 3.0 m to produce a three-loop standing wave with an amplitude of 4.6 cm, What are the lowest frequency
Assume that the mud ends up uniformly distributed over a surface area of the valley measuring 0.3 km x 0.3 km, What is the mass of the mud sitting above a 4 m2 area of the valley floor
Consider a stack of paper 3.0 meters high. each sheet of paper is the stack has a thickness of 0.01 centimeter
A pipe is open at both ends. The pipe has resonant frequencies of 528 Hz and 660Hz (among others). Find two possible values for the length of the pipe
Charge Q+ is located d units along y axis in positive direction north of O, What is magnitude of electric field at the origin O
Your beighbor has a cute Bichon-Frise puppy. assume air is 80% Nitrogen and 20% Oxygen, how many grams of air does the tire contain
A thin ring of radius R carries a charge 3Qdistributed uniformly over three-fourths of its circumference, and -Q over the rest
An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0°C and rejects heat to a room at 22.5°C, How much heat is discharged into the room
A tree falls on a bicycle path 40 m ahead of a cyclist traveling at 16 m/s, how far from the fallen tree will she be when she stops
A small ball rolls horizontally off the edge of a tabletop of height h, How long is the ball in the air and What is its speed at the instant it leaves the table
A 124-? resistor and a 163-? resistor are both connected in parallel across a power supply, what is the exact potential drop (in V) across the 163-? resistor
A simple pendulum has a length of 52.5 cm and makes 83.0 complete oscillations in 2.00 min, Find the value of g at the location of the pendulum
The position of an object connected to a spring varies with time according to the expression x = (5.8 cm) sin(9.5?t), Find the period of this motion
The period of motion of an object-spring system is T = 0.546 s when an object of mass m = 254 g is attached to the spring, Find the frequency of motion in hertz
A 5.5- kg concrete block rests on a level table. A 3.7- kg mass is attached to the block by a string passing over a light, what is the coefficient of friction between the block and the table
Vector A - Vector B=(-51.4m)x, Vector C=(62.2m)x, and Vector A + Vector B + Vector C=(13.8m)x, Find Vector A and express in terms of unit vector x
An ?-particle has a charge of +2e and a mass of 6.64 ? 10-27 kg, What is the speed of the ?-particle and What is the radius of its circular path
Three resistors, 28, 48, and 80 ?, are connected in series, and a 0.53-A current passes through them, What is the equivalent resistance