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A single string is made up of two strings of different densities joined together. Each of the strings is 1.40 m long. The first string has linear density 2.30×10?4 kg/m and the second has linear density 1.80×10?4 kg/m. If it takes 2.20×10?3 s for a wave to travel from the beginning to the end of the combined string, what is the tension on the combined string?
You stand with your nose 5.0cm from the surface of a reflecting ball, and your nose's image appears three-quarters full size. What is the balls diameter?
The loop is leaving a region in which a 2.8 T magnetic field exists; the magnetic field outside this region is zero. During a time of 2.0 s, illustrate what is the magnitude of the change in the magnetic flux?
Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, find the oxygen concentration at the interior end of the tube
A laser beam strikes one end of a slab of material, Determine the number of internal reflections of the beam before it emerges from the opposite end of the slab
Green light (λ = 546 nm) strikes a single slit at normal incidence. What width slit will generate a central maximum that is 3.00 cm wide on a screen 1.76 m from the slit.
At one instant a bicyclist is 49.0 m due east of a park's flagpole, going due south with a speed of 14m/s. Then 35.0 s later, the cyclist is 49.0 m due north of the flagpole, going due east with a speed of 14m/s.
Mark and Clark are identical twins at the amusement park riding on the bumper cars. Both boys have the same mass, 85kg. The cars are identical with a mass of 120 kg.
A projectile is fired at 60.0 o above the horizontal. Its initial speed is equal to 150.0 m/s. Like most problems in this class (2010), ignore the effects of air unless told otherwise
The catapult on an aircraft carrier can take an aircraft from 0 to 197 mph ( the launch speed) in 5 Seconds, at which time the aircraft launches
Two charges are separated by some distance and the magnitude of the electric force between them is 224.6 Newtons. If the distance between the same two charges is tripled, what is the magnitude of the electric force on them now in Newtons?
If the dummy is thrown forward with force of 130.0 N while simultaneously being hit from the side with a force of 4500.0 N, illustrate what force will the sensor report?
A satellite is rotating around a planet in a circular orbit. The radius of the orbit to the center of the planet is R = 2.4*107 m, Express the magnitude of the centripetal acceleration of the satellite ac in terms of the speed of the satellite v, an..
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