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A 26-cm-long wire with a linear density of 15 g/m passes across the open end of an 87-cm-long open-closed tube of air. If the wire, which is fixed at both ends, vibrates at its fundamental frequency, the sound wave it generates excites the second vibrational mode of the tube of air. What is the tension in the wire? Assume the speed of sound is 340 m/sec.
q1. a 5.19 g lead bullet travelling at 252 ms is stopped by a large tree. if half the kinetic energy of the bullet is
During launches, rockets often discard unneeded parts. A certain rocket starts from rest on the launch pad, What total distance did the canister travel between its release and its crash onto the launch pad
Two thin lenses with a focal length of magnitude 19.5cm , the first diverging and the second converging, are located 14.6cm apart. How far from this first lens is the final image formed
A circular loop of wire lies in the plane of the paper. An increasing magnetic field points out of the paper. What is the direction of the induced current in the loop?
A plane accelerates from rest at a constant rate of 5.00m/s2 along a runway that is 1800m long. What is the time tTO needed to take off
A person of mass M lies on the floor doing leg raises. His leg is 0.85m long and pivots at the hip, How far does the entire body's center of mass rise
A 50 newton horizontal force pushes a 10 kg mass sitting on a horizontal surface. What is the acceleration of the mass
a box-shaped wood stove has dimensions of 0.75 m x 1.2 m x 0.40 m an emissivity of 0.81 and a surface temperature of
Unpolarized light of intensity I0 is incident on a series of four polarizers, What fraction of the incident light will pass through the series
An electric dipole is formed from +/-4.0 nC point charges spaced 3mm apart. The dipole is cantered at the origin, oriented along the y-axis. What is an electric field strength at point (x,y) = ( 6.0 cm, 0 cm)
A uniform upward directed electric field of magnitude 1.4*10^-6 N/C has been setup between tow horizontal plates by charging the lower plate positively abnd the lower plate negatively, what is the vertical deflectio of the mass when it exits the pl..
1 a 10 kg wooden box is resting on a wooden floor. what is the minimum horizontal force that must be applied to the box
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