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A long string is moved up and down with simple harmonic motion with a frequencyof 42 Hz. The string is 543 m long and has a total mass is 47.2 kg. The string is fixed atboth ends. If the string is fixed at a length of 28 m we find a third harmonic standingwave.a)What is the tension in the string?b) How long would the string need to be to find the second harmonic standing wave?
An AC generator is to have a maximum output of 332 V. Each coil has an area of 0.125 m2 and a resistance of 15.3 ? and rotates in a magnetic field of 0.739 T with a frequency of 35.7 Hz, Determine the induced emf as a function of time
Temperatures are often measured with electrical resistance thermometers. Suppose that the resistance of such a resistance thermometer is 162 when its temperature is 16.0 °C. What is the temperature of the liquid
The rms speed of the molecules in 1.9 g of hydrogen gas is 1800 m/s. What is the total translational kinetic energy of the gas molecules? (kJ) What is the thermal energy of the gas? (kJ)
A Cessna aircraft has a lift-off speed of 120 km/h. How long does it take the aircraft to become airborne?
Two parallel plates having charges of equal magnitude but opposite sign are separated by 24.0 cm. Determine the force on the proton
Three protons and three electrons are to be placed at the vertices of a regular octahedron of edge length a. We want to find the energy of the system, that is, the work required to assemble it starting with the particles very far apart. There are ..
A skier moving at 4.60m/s encounters a long, rough horizontal patch of snow having coefficient of kinetic friction 0.220 with her skis. How far does she travel on this patch before stopping?
a cube of wood floating in water supports a 200g mass at the centre of its top face. when the mass is removed, the cube rises by 2cm. determine the volume of the cube
q1. an electron with a speed of 6.12 times 108 cms in the positive direction of an x axis enters the electric field of
what is Spectroscopic and Photometric Parallaxes ? Define specific heat capacity and thermal capacity.
An oscillator consists of a block attached to a spring (k = 450.0 N/m). At some time t the position (measured from the system's equilibrium location),velocity, What is the amplitude of oscillation for the motion
the final equilibrium temperature of the tin- water mixture.
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