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1. An iron vat is 11 m long at room temperature (20°C). How much longer is it when it contains boiling water at 1 atm pressure?
2. An aluminum wing on a passenger jet is 40 m long when its temperature is 21°C.At what temperature would the wing be 2 cm (0.02 m) shorter?
A spacecraft is 110 km above the surface of the moon. What is the velocity of the spacecraft
A long solenoid, with its axis along the x axis, consists of 180 turns per meter of wire that carries a steady current of 15.0 A. A coil is formed by wrapping 30 turns of thin wire around a circular frame that has a radius of 7.00 cm. The coil is ..
What is the minimum thickness of coating which should be placed on a lens in order to minimize reflection of 530nm light
A real object is 42.1 cm from a negative lens that has a focal length of 25.6 cm. The object is 2.45 mm high. The height and orientation of the image are
A transparent rod 30.0 long is cut flat at one end and rounded to a hemispherical surface of radius 10.0 cm at the other end. What is its apparent depth when viewed from the curved end
a 3-kg object moving to the right on a frictionless horizontal surface with a speed of 2 ms collides head-on and sticks
block A (mass 2.28 kg) rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass 2.57 kg ), evaluate the tension in the cord
You pull downward with a force of 23 N on a rope that passes over a disk-shaped pulley of mass 1.3 kg and radius 0.075 m. Find the linear acceleration of the 0.63-kg mass
A battery having an emf of 12.00 V delivers 100 mA when connected to a 73.0 load. Determine the internal resistance of the battery
Even though energy is conserved for the system, why is it a good idea to make the components of the drive mechanism as light as possible (with the exception of the flywheel)?
A rock thrown with speed 12.0m/s and launch angle 30.0 degrees (above the horizontal) travels a horizontal distance of d = 15.5m before hitting the ground. Find the height yi from which the rock was launched
A particle of mass 2 units moves along the x-axis attracted toward the origin by the force whose magnitude is numerically equal to 8x. find the differential equation describing the motion
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