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A wheel is spinning at 53 rad/s. It undergoes an angular acceleration of 44 rad/s 2 until it reaches an angular velocity of 381 rad/s.
1. Decide how long it took to spin up.
2. Decide how many revolutions it made while spinning up.
q1. a shell fired from a cannon has a muzzle speed the speed as it leaves the barrel of 800 fts. the barrel makes an
A block of wood has a density of 0.50 g/cm3 and a mass of 1.500 kg. What is the volume of oil that the wood displaces
A 0.2kg toy car rolls down ramp. If the car started from rest at a height of 0.30m, what is its speed at the bottom of the ramp? Incorrect: Your answer is incorrect. At the bottom, it hits another stationary car with equal mass. The two cars have Vel..
A 1000 kg car is pushed up a 17.5 degree incline, for a distance of300 m at a constant speed. assume the applied force is directedparallel to the plane. how much work does this force do if theplane is frictionless? has a coeffiecient of friction of 0..
An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 V for 0.65 ms. find The average power supplied by the pacemaker
A transformer has 350 primary turns and 1290 secondary turns. The input voltage is 120?V and the output current is 15.5A . Assume100% efficiency, What is the output voltage
A village maintains a large tank with an open top, containing water for emergencies. The water can drain from the tank through a hose of diameter 6.65 cm. The hose ends with a nozzle of diameter 2.50 cm. A rubber stopper is inserted into the nozzl..
If a 20kg mass hangs from the right side of a massless bar 5 meters in length and a 5kg mass hangs from the left side of the bar
A hollow cubical box is 0.498 m on an edge. This box is floating in a lake with 1/5 of its height beneath the surface. The walls of the box have a negligible thickness. Water is poured into the box. What is the depth of the water in the box at the in..
An object is oscilliating on a spring with a period of 4.60 s . At time t= 0.00 s the object has zero speed and is at x = 8.30 cm
A 5.0 multiplied by 102-newton girl takes 10. seconds to run up two flights of stairs to the landing, a total of 5.0 meters vertically above her starting point. What power does the girl develop during her run.
When a turntable rotating at 33 1/3 rev/min is shut off, it comes to rest in 24 s. Assume constant angular acceleration. Find the average angular velocity of the turntable
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