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A string that is 0.15m long and fixed at both ends is vibrating in its n =5 harmonic. The sound from the string excites a pipe that is 0.82 m long and opens at both ends into its second overtone resonance. What is the distance between a node and adjacent antinodes in the string? The speed of sound in air is 345 m/s.
You are driving along a highway at 25 m/s when you hear the siren of an emergency vehicle traveling in the opposite direction on the other side of the highway. What is the speed of the vehicle
A wooden cube of side .3 m has a density of 700kg/m3 and floats partiall submerged in the seawater (density =1025 kg/m3) What distance from the bottom of the cube to the surface of the water? How much extra mass must be added so that the top of the c..
Calculate the magnitude of the gravitational force exerted ona 441-kg satellite that is a distance of 2.17 times earth radii from the center of the earth. What is the magnitude of the gravitational force exerted on the earth by the satellite? Deter..
A straightforward method of computing the density of an object is to measure its mass and then measure its volume by submerging it in a graduated cylinder. Find what is the density of a 220 gram rock that displaces 87.0 cm3 of water
A subatomic particle with mass m initially at rest suddenly decays. what is the velocity of the other particle created
A Carnot heat engine takes 2000J of heat from the high temperature reservoir at 227 degrees Celsius, What is the Carnot efficiency
a simple atwoods machine uses two masses m1 and m2. starting from rest the speed of the two masses is 5.0 ms at the end
On Apollo Moon missions, the lunar module would blast off from the Moon's surface and dock with the command module in lunar orbit. Find the impact speed of the lunar module
A box full of books rests on a wooden floor. The normal force the floor exerts on the box is 236 N. (a) You push horizontally on the box with a force of 129 N, but it refuses to budge.
a jumper in the long-jump goes into the jump with a speed of 12 ms at an angle of 20 above the horizontal. how long is
A hopper drops gravel at a rate of 75kg/s onto a belt that moves by constant velocity v=2.2m/s. What is the additional force (over and above internal friction) required to keep the conveyor belt moving as gravel falls onto it?
a constant horizental force of 10N is applied to a wheelof mass 10 Kg and radius 0.300 m as shown in the diagram. what is the rotational inertia of the wheel about an axisthrough its center of mass and perpendicular to the plane of thewheel
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