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An aluminum rod is 18.5 centimeter long at 20°C and has a mass of 350 gram. If 10500J of energy is added to the rod by heat, evaluate the change in length of the rod?
Agriculture and forestry for food and fuels, space heating of large and small buildings, water heating, and heating for drying and many other processes are current and potential applications of solar energy.
An iron bar of mass, 0.99 kg, slides down a frictionless incline 0.94 m high. What is the speed of the combined masses after collision
Two loudspeakers on a concert stage are vibrating in phase. A listener is 57m from the left speaker and 30m from the right one. The listener can respond to all frequencies from 20 to 20 000 Hz.
An ideal gas initially at 20°C and 219 kPa has a volume of 4.70 L. It undergoes a quasi-static,, Find the heat added to the gas during the expansion.
A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20° above the horizontal. How far does the jumper jump
Right as the cup begins to slide the applied force is equal to the force of friction-draw a free body diagram for each type of cup, Calculate and label the force due to gravity mg
Two circular metal plates with diameter 18 cm and separated by a distance of 2mm are connected in series with a 10 cm long cylindrical piece of material with diameter 1 mm and a 10 v battery. FIND the capacitance of the two circular metal plates wi..
A tennis player swings her 1000g racket with a speed of 11m/s, If the tennis ball and racket are in contact for 12ms, find the average force that the racket exerts on the ball
a 2800 kg elevator carries a maximum load of 835.1 kg. a constant frictional force of 4500 newtons retards the elevator's motion upward. what minimum power must the motor deliver to lift the fully loaded elevator at a constant speed of 2.08m/s
A small but measurable current of 7.70 E-10 A. exists in a copper wire whose diameter is 0.05 cm. Calculate the electron drift speed (in meters/second)
A 2.0kg block of wood sits on a table. A 3.0 g bullet, fired horizontally at a speed of 360m/s, find the speed of the block immediately after the bullet exits
The cord is after that pulled from below, shortening the radius of the circle in which block revolves to 0.15. Model the block as a particle.
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