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In the arrangement shown in the figure below, an object of mass 4.2 kg hangs from a cord around a light pulley. The length of the cord between point P and the pulley is 3.5 m. When the vibrator is set to frequency of 183 Hz, a standing wave with eighteen loops is formed.
(a) How many complete loops (if any) will result if the mass is changed to 16.8 kg? (Answer with -100 if no standing wave forms.)
A cannonball (20kg) is shot from a cannon(200kg) with a velocity of 20m/s. what is the backwards velocity of the cannon
An oscillating LC circuit has a current amplitude of8.50 mA, a potential amplitude of 250mV, and a capacitance of 235 nF. What is the maximum energy stored in the capacitor
A boat takes 3.30 hours to travel 40.0 km down a river, then 5.00 hours to return. How fast is the river flowing
The bullet remains embedded in theblock, which is observed to slide 0.230 m along the surface before stopping. What was the initial speed ofthe bullet?
A light rope is wrapped several times around a large wheel with a radius of .4 m. The wheel rotates in frictionless bearings about a stationary horizontal axis. Calculate the inertia of the wheel
A 1.5 kg ball is thrown straight up with aninitial speed of 12m/s. What will be the potential energy of the ball when it reaches its max. height
A projectile is shot on level ground with a horizontal velocity of 20 m/s and a vertical velocity of 42 m/s. Obtain how much time is the projectile in the air
A man with a mass of 58 kg stands up in a 72-kg canoe of length 4.0 m floating on water. How far does the canoe move
5.00 g of ice at -10.0 celsius are added to 20.0 mL of hot coffee at 60.0 celsius, What is the final temperature of the coffee
Consider a spherical Gaussian surface which surrounds two electric charges (+Q), What is the net electric flux through the Gaussian surface
my kids came up with a form of tether ball where they attached a ball to a string and let it swing around the role.
The max Compton shift in wavelength occurs when a photon is scattered through 180 degrees. What scattering angle will produce a wavelength shift of 2/5ths the max
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