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A 4.50 cm copper wire is at a temperature of 10.0°C. The coefficient of linear expansion of copper is 17.0 × 10-6/°C. If the temperature of the copper wire increases its temperature by 3.00°C, then what is the change in the length of the wire?
An artificial satellite in space has a panel attached to it with dimensions 20m X 25m X 3m. The panel is made of Carbon steel with a carbon content of 1.5%.
Starting from rest, a 4.10-kg block slides 2.6 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is ?k = 0.436, Determine the work done by normal force
A golf ball strikes a hard, smooth floor at an angle of 20.6 ° and, as the drawing shows, rebounds at the same angle. The mass of the ball is 0.0298 kg, and its speed is 34.6 m/s just before and after striking the floor. What is the magnitude of t..
Heat engines take input energy in the form of heat, use some of that energy to do work, What is the magnitude of the internal energy that the athlete uses in order to do 9.7x104 J of work
Three 15-? resistors are connected in parallel. This arrangement is connected in series with a 10-? resistor. What is the effective resistance of the parallel portion of the circuit
A railroad train is traveling at 30.0 m/s in still air. What frequency is heard by a passenger on a train moving in the opposite direction to the first at 18.0 m/s and approaching the first
Suppose that the force exerted by the heart on the blood entering the aorta is 3.25N and the surface area of the aorta is 3.15cm square. Calculate the pressure of the blood in the aorta
Explain why the two lines on your graph should always cross at the frequency where XC =R. Find this frequency from your component values and compare it to your graph. What should Vout/Vin equal for each filter at that point?
Electrons accelerated by a potential difference of 12.3 Volt pass through a gas of hydrogen atoms at room temperature. Find what wavelengths of light will be emitted
An airplane is flying horizontally with a speed of 1000 km/h(280m/s) when an engine falls off. avoid air resistance,assume it takes 30s for the engine to hit the ground.
A cart has a mass of 851.8 g the attached string has a tension of 0.36 N and a displacement of 40.9 cm. what is the kinetic energy of the cart
1 an antenna is connected to a car battery. will the antenna emit electromagnetic radiation? why or why not? explain.2
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