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The fundamental frequency of an organ pipe corresponds to 262 HZ. The third resonance of a closed pipe has the same frequency. What are the lengths of the two pipes
A 60-power refracting telescope has an eyepiece with a focal length of 5.5cm. How long is the telescope
A motor is designed to operate on 117 V and draws a current of 15.0 A when it first starts up. determine the resistance of the armature coil
A standing wave is in a open end tube. The tube length is 1.80m, determine the fundamental frequency
Two small charges with a mass of 1.0 g each are connected by 2.0-cm-long insulating rod of negligible mass. What is the dipole moment of the rod?
The space shuttle is in a 300km -high circular orbit. It needs to reach a 610km -high circular orbit to catch the Hubble Space Telescope for repairs, How much energy is required to boost it to the new orbit
a 1.5 kg box moves back and forth on a horizontal frictionless surface between two different springs. by how much will the box compress the weaker spring
The path of an electron, travelling at 3.7 × 104 meters/second, is making the right angle to a magnetic field. A single electron experiences a force of 2.2 × 10-15 Newton's while in the field. What is strength of the magnetic field .
A force of 2880 N is needed to bring a car moving at 20.8 m/s to a halt in 18.3 s. What is the mass of the car
A 570 g, 6.50-cm-diameter solid cylinder rolls across the floor at 1.00 m/s. What is the can's kinetic energy
You discover a new extra-solar planet orbiting a 1 solar mass star using high spatial resolution imaging and adaptive optics in the infrared part of the spectrum. What is the planet-star separation if you measure an angular separation of 0.6"
500 mL of a liquid with a coefficient of volume expansion of 205x10-6/oC fills to the brim a container that has a coefficient of volume expansion of 105x10-6/oC. how much of the liquid will overflow the container
A thief was trying to pull a 20 kg coffer (a coffer is a box usually used to hold valuables) along an essentially frictionless horizontal surface. What was the work done on the coffer by the rope
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