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Two loudspeakers face each other, vibrate in phase, and produceidentical 441-Hz tones. A listener walks from one speaker towardthe other at a constant speed and hears the loudness change(loud-soft-loud) at a frequency of 1.07 Hz. The speed of sound is343 m/s. What is the walking speed?
A car with a mass of 2000 kg is moving east at 24 m/s. It collides with a truck that weighs 3200 kg moving north at 14 m/s. What is the velocity of the vehicles after the impact
A particle of mass 0.500 kg is attached to the 100 cm mark of a meter stick of mass 0.100 kg. What is the angular momentum when the stick is pivoted about an axis perpendicular to the table through the 0 cm mark
A 72.0-kg bungee jumper is standing on a tall platform (h0 = 42.2 m). The bungee cord has an unstrained length of L0 = 9.54 m, Determine how far the bungee jumper is from the water when he reaches the lowest point in his fall
a potential difference of 15v is found to produce a current of 0.44a in a 3.6m length of wire with a uniform radius of
a dock worker applies a constant horizontal force of 78.0 to a block of ice on a smooth horizontal floor. the
In a 6.5×10?3-m3 volume of ideal gas at the pressure of 2.7×106 Pa, How many molecules are in the sample
while walking between gates at an airport you notice a child running along a moving walkway. estimating that the child
1. suppose an airplane flew east along the equator from the prime meridian to the international dateline that is
The deepest place in all the oceans is the Marianas Trench, where the depth is 10.9 km and the pressure is 1.10x10^8 Pa. by how much does its volume decrease
A charged particle of mass m and positive charge q moves in a uniform constant electric and magnetic fields, E pointing in the y direction and B in the z direction, Find the electric force on the particle
A block of mass 5 kg slides without friction at a speed of 8 m/s on a table, How far is the spring compressed before the masses come to a rest
A 1600 kg car starts from rest at A, coasts 180m through a dip and comes to stop at B after coasting a distance d on level ground. If the rolling resistance is a constant force of 280N, conclude the distance d.
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