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A 2.50 kHz sound wave is transmitted through an aluminum rod.A) What is the wavelength in the almuniumB) What is the sound wave's frequency when it passes into theair?C) What is it's wavelength in air.
One tire is inflated to a pressure of 40 and goes a distance of 18.0 ; the other is at 105 and goes a distance of 93.4. Assume that the net horizontal force is due to rolling friction only and take the free-fall acceleration to be = 9.80.
What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile when it is going down as it did when it was going up.
A duck is floating on a lake with 30% of its volume beneath the water. What is the average density of the duck
What is the electric flux through sphere that has a radius of 1.00 m and carries a charge of +1.00 ?C at its center
If a particle of mass 4.8 kg is moving east at 10 m/s and a particle of mass 17 kg is moving west at 10 m/s, what is the velocity of the center of mass of the pair
questiona girl of mass mg is standing on a plank of mass mp. both are initially at rest on a frozen lake that
A copper bowl of mass m1 contains a mass m2 of water, both at temperature T (which is below the boiling point of water). How much energy is transferred to the water as heat
Imagine two 5.0 g bags of protons, one at the earth's north pole and the other at the south pole. Calculate the gravitational attraction that each bag exerts on the other
A coin placed on a turntable rotating at 37.9 rev/min will stay there if its center is placed no further than 8.5 cm from the axis of rotation. find the coefficient of friction between the coin and turntable
Determine the magnitude of door's angular acceleration.
A tube of air is open at only one end and has a length of 1.29 m. What is the distance between one node and the adjacent anti-node
A -10.0 nC point charge and a +20.0 nC point charge are 15.0 cm apart on the x-axis. What is the direction of the electric field at the point on the x-axis, between the charges, where the electric potential is zero
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