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You have a string with a mass of 14.1 g. You stretch the string with a force of 8.49 N, giving it a length of 1.97 m. Then you vibrate the string transversely at precisely the frequency that corresponds to its fourth normal mode, that is, at its fourth harmonic. What is the wavelength of the standing wave you create in the string? What is the frequency?
A state trooper chases a speeder along astraight stretch of road; both vehicles move at 155 km/h. What is the Doppler shift in the frequency heard by the speeder
The maximum transverse acceleration of a point at the middle of the segment is 8800 m/s^2 and the maximum transverse velocity is 3.50m/s.
A 2.50-kg stone is dropped from rest at a height of 3.75 m. What impulse does gravity impart to this stone from the instant
Light from an argon laser strikes a diffraction grating that has 5365 grooves per centimeter. The central and first-order principal maxima are separated by 0.488 m on a wall 1.7 m from the grating. Determine the wavelength of the laser light. nm
Consider a generator with a 350 turn coil on its armature and a uniform magnetic field of 5.4 T. how fast do we need to rotate the coil
A 920 kg sports car collides into the rear end of a 2300 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.6 m before stopping. The police officer, knowing that the coefficient of kinetic frict..
A satellite has a mass of 6434 kg and is in a circular orbit 4.36 × 105 m above the surface of a planet. What would be the true weight of the satellite
A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. How far short of the target should it drop the package
A projectile is launched with an initial speed of 60 m/s at anangle of 60 degrees. It lands on a hillside 4 seconds later. What is the straight line distance to where it lands
The energy provided each hour by heat to the turbine in an electric power plant is 9.5 x 10^12 J. If 6.5 x 10^12 J of energy is exhausted each hour from the engine as heat
Estimate the fractional error (%) on the left side and on the right side of the equation based on the precision of the available equipment in class: the pulling mass is measured by slotted weights with precision of 10 gram
A Girl is pushing on a 45 kg dresser with 300 N of force. The dresser has a coeficient of statice friction of 0.83 and a coeficient of kinetic friction of 0.55. How much is the force of friction on the dresser
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