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A speaker generating a tone at 281 Hertz is moving towards a stationary observer with a speed of 59 meter per second.
A. Find the frequency of the tone perceived by observer.
B. Find the frequency of the tone perceived by the observer if the speaker is moving away with a speed of 59 m/s.
Two atmospheric sound sources A and B emit isotropically at constant power. find the ratio of the larger power to the smaller power
In 0.675 s, a 6.80-kg block is pulled through a distance of 4.10 m on a frictionless horizontal surface, starting from rest. By how much does the spring stretch
An oscillator with a mass of 420 g and a period of 0.900 s has an amplitude that decreases by 1.90 percent during each complete oscillation.
Two 500 g block of wood are 2.0m apart on a frictionless table. A 10g bullet is fired at 400 m/s towards the blocks. What is the speed of the second block after the bullet stops
A typical ten-pound car wheel has a moment of inertia of about 0.35kg *m2. What is the rotational kinetic energy K of the rotating wheel
A narrow but solid spool of thread has a radius R and mass M. compute what force must you exert on the thread
Two tanks are engaged in a training exercise on level ground. The first tank fires a paint-filled training round with a muzzle speed of 240m/s at an angle 13.4, Find the distance between the tanks when the round was first fired
A 2.0 wood block is launched up a wooden ramp that is inclined at a 31 angle. What vertical height does the block reach above its starting point
A long, straight, current-carrying wire runs from north to south. If a compass is put underneath the wire, in which direction will the compass needle point? A compass needle placed above the wire points with its N-pole toward the east. In what direct..
A block of mass 3.65kg and density 600 kg/m^3 floats in a bath of oil of density 970kg/m^3. calculate total volume of wood and metal
a block having mass m= 10kg rests on a horizontal surface. Us+.4 and Uk=.2. what is the friction force if an external horizontal force of 32N is exerted on the block
Two wheels have the same mass and radius of 5.0 kg and 0.38 m,respectively. One has (a) the shape of a hoop andthe other (b) the shape of a solid disk. Thewheels start from rest and have a constant angular accelerationwith respect to a rotational axi..
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