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You're a production engineer in a cookie factory, where mounds of dough drop vertically onto a conveyer belt at the rate of one 14 mound every 2 seconds. You're asked to design a mechanism that will keep the conveyor belt moving at a constant 46.
A) What average force must the mechanism exert on the belt? Express your answer using two significant figures.
A(n) 84 g arrow is fired from a bow whose string exerts an average force of 110N on the arrow over a distance of 80cm. What is the speed of the arrow as it leaves the bow.
A 1300 {kg} car moving on a horizontal surface has speed v = 80{ km/h} when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.3{ m}
You have three light-bulbs in series. The first is 60W the next is 120W and the last is 240W. They are all at 120v. Which light-bulb has the highest resistance. I use the equation.P=I^2R and found the 240W to be the highest. This is wrong. Which ligh..
A 4x 11 swimming pool slopes linearly from a 1.20 depth at one end to a 3.80 depth at the other. What is the mass of water in the pool.
In one day, a 75 kg mountain climber ascends from the 1400 m level on a vertical cliff to the top at 2380 m. find her change in gravitational potential energy on the second day
The ink drops have a mass = 1.0×10-11 each and leave the nozzle and travel horizontally toward the paper at velocity = 22. The drops pass through a charging unit that gives each drop a positive charge by causing it to lose some electrons.
A 954 kg drag race car accelerates from rest to 113 km/h in 0.919 s. What change in momentum does the force produce
A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. how fast will the disk be turning
The free oscillations of a mechanical system are observed to have a certain angular frequency w1. what is the quality factor Q
80 pF capacitor and a 320 pF capacitor are both charged to 2.8 kV. They are then disconnected from the voltage source and are connected together, Find the resulting potential difference across each capacitor
A permanent magnet is hung from a string ( balanced ) and pointed in an East - West orientation and released. Describe its motion
two point charges q and 2q lie on the x-axis . which regions on the x-axis include a point where the electric field due to the two point charges is zero?
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