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A given copper wire has a resistance of 5.07 at 20.0°C while a tungsten wire of the same diameter has a resistance of 4.66 at 20.0°C. At what temperature will the two wires have the same resistance?
An x-ray tube accelerates electrons from rest at 5.0×10 14th m/s(squared) power through a distance of 20cm. Find the acceleration time
A 20.0- projectile is fired at an angle of 60.0 above the horizontal with a speed of 80.0 . At the highest point of its trajectory, the projectile explodes into two fragments with equal mass, one of which falls vertically with zero initial speed.
alex and bob are twins working on a space station located at a fixed position in deep space. alex undertakes an
A circuit is connected in parallel with two capacitor C1=6F and C2=3F with seperate switches S1,S2 and has a voltage of 20V. capacitor C1 is first charged by closing switch S1. switch S1 is then opened , and charged capacitor is connected to the un..
At time t = 0 s, a puck is sliding on a horizontal table with a velocity 3.60 m/s, 35.0° above the +x axis. As the puck slides, a constant acceleration acts on it that has the following components: ax = –0.360 m/s2 and ay = –0.980 m/s2.
A 5.5 kilogram bowling ball and a 7.5 kilogram bowling ball rest on a rack 0.54 meter apart. Find the force of gravity exerted on each of the balls by the other ball
The seconds hand on a certain clock is 15.8 cm long. What is the tangential speed (in cm/s) of the tip of this hand
A shopper in a supermarket pushes a loaded cart with a horizontal force of 8 N. The cart has a mass of 33 kg. How far will it move in 6.0 s, starting from rest?
A 71.0 kilogram boulder is placed on a 2.00 meter long board, at a point that is 1.40 meter from one end. find what forces does Cliff applies to the board
A 5?, 10?, and 20? resistor are connected in parallel and the combination connected in parallel to a 20V battery with negligible resistance
Two grams of liquid water are at 0 degree Celsius and anothertwo grams are at 100 degree Celsius. What is the mass (in gr) of the liquid water that remains
A solid cylindrical disk has a radius of 0.15 m. It is mountedto an axle that is perperndicular to the circular end of the diskat its center. What is the mass of the disk
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