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A pipe fitted with air at 20oC produces two successive harmonics at 240 Hertz and 280 Hertz. Find how long is the pipe and is it open or closed?
While in orbit about the Earth, a space shuttle's mass is 50,000 kilogram and its speed is 8 km/s. Evaluate what is its kinetic energy
A square coil and a rectangular coil are each made from the same length of wire. Each contains a single turn. The long sides of the rectangle are twice as long as the short sides.
a child on a swing set swing back and forth if the length of the supporting cables for the swing is 2.1 m long, what's acceleration does to gravity or oscillation
A box is put on a slide to move it from one part of a factory to another the slide is at an angle of 20 degrees below the horizontal the coefficient of friction between the box and slide is 0.352 what is the acceleration of the box.
A drill starts from rest. After 3.66s of constant angular acceleration, the drill turns at a rate of 2694 rad/a, find the angle through which the drill rotates
a copper wire has a circular cross section with a radius of 5.00 mm. the equation for drift velocity is given below. vd
Object O1 is 14.7 cm to the left of a converging lens with a 12.0-cm focal length. A second lens is positioned 10.0 cm to the right of the first lens and is observed to form a virtual image at the position of the original object O1.
the head of a hammer m1.5 kg moving at 4.5 ms strikes a nail and bounces back with the same speed after an elastic
Before opening his parachute, a sky diver with a mass of 90.0 kg experiences an upward force from air resistance of 150 N. What is the sky diver's acceleration
A 1000 kg cannon is pointed at 30 degrees to the horizontal. Its muzzle speed is 300 m/s. It fires a ball, mass 5 kg. At what angle and speed will the ball fly out
A certain pipe has resonant frequencies of 504 Hz, 648 Hz, and792 Hz, with no other resonant frequencies among these values.
What is the potential difference across capacitor. How much charge is on each place.
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