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A merry-go-round starts from rest and accelerates uniformly over11.0 s to a final angular velocity of8.40 rev/min.
a) Find the maximum linear speed of a personsitting on the merry-go-round 5.75 m fromthe center.b) Find the person's maximum radial acceleration.c) Find the angular acceleration of the merry-go-round.d) Find the person's tangential acceleration.
The telescope at a small observatory has objective and eyepiece focal lengths respectively of 20.0 m and 12 cm. determine length of the barrel of the telescope
A hydrogen atom initially in its ground state absorbs a photon and ends up in the n=6 state. Calculate the energy of the incident photon
A magnetic field is oriented at an angle = 60 degrees to the normal of a rectangular area. what is the area of a rectangle
a 500 g steel rod 30 cm in length is pivoted about its center and rotated at 300 rpm.a what is the angular momentum?b
A 200 kg rocket sled can be accelerated at a constant rate from rest to 1600 km/h in 2.0 s. What is the magnitude of the required net force
A simple harmonic oscillator consists of a block of mass 4.kg attached to a spring of spring constant 153 N/m. When t = 2 s, the position and velocity of the block are x = +0.129 m and v = +3.415 m/s.
Ultrasound intensity level: Beta = 10Log (I2/I1), I1 and I2 = intensity at different locations/times An ultra sound signal is sent under sea water (v=1530m/s) to detect the location of an object. Determine the location of the object from the source
On a day when the wind is blowing toward the south at 3 m/s, determine the resultant velocity (speed and direction) of the runner
An vehicles starts from rest and accelerates at a rate of 2m/s2 in a straight line until it reaches a speed of20m/s. The vehicle then slows at a constant rate of1m/s2 until it stops.
The supersonic aircraft Concorde has a length of 61.6m when sitting on the ground on a typical day when the temperature is 12.0C . The Concorde is primarily made of aluminum
A certain automobile engine delivers 2.39 104 W (32.0 hp) to its wheels when moving at a constant speed of 25.0 m/s ( 56 mi/h). What is the resistive force acting on the automobile
A plastic ball in a liquid is acted upon by its weight and by a buoyant force. The weight of the ball is 4.8N. The buoyant force has a magnitude of 6.5N and acts vertically upward. External force acting on the ball maintains it in the state of res..
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