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Water flows at the rate of 3.02 kg/s through a hose with a diameter of 3.08 cm. What is the speed of water in this hose?
If the hose is attached to a nozzle with a diameter of 0.761 cm, what is the speed of water in the nozzle?
A special electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop at an amusement park. What is the speed of the rider at the top of the loop
Air "breaks down" when the electric field strength reaches 3*10^6 N/C, causing a spark. How many electrons must be transferred from one disk to the other to create a spark between the disks
A ball of mass 0.300kg that is moving with a speed of 5.4m/s collides head-on and elastically with another ball initially at rest. Calculate the velocity of the target ball after the collision
The step-down transformer in a local neighborhood reduces the voltage from a 7,200 V line to 120 V. What current does the transformer draw from the line
The entrance to a large lecture room consists of two side-by-side doors, one hinged on the left and the other hinged on the right. Each door is 0.740 m wide. Sound of frequency 708 Hz is coming through the entrance from within the room.
A 2 kg gun imparts a speed of 500 m/s to a 25 g bullet. what average force is exerted on the shooter's shoulder
An outside loudspeaker (considered a small source) emits sound waves with a power output of 120 W. Find the intensity level in decibels at that distance
2-information centers used for retail credit authorization are located in 2-different major population centers, which are separated from each other through a large zone of very little population.
A physicist has developed a device that generates a beam of alpha particles (each of which is a helium nucleus, consisting of two protons, two neutrons, and no electrons).
A thin, flat washer is a disk with an outer diameter of 14 cm and a hole in the center with a diameter of 3 cm. What is the electric field on the axis of the washer
Two objects X and Y are observed traveling in space under the influence of the gravitational attraction of the Sun. Determine the smallest speed of the object in the orbit
A 7.50 nC charge is located 1.80 m from a 4.20 nC charge. (a)Find the magnitude of the electric force that one particle exerts on the other. (b) Is the force attractive or repulsive?
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