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Water flowing through a garden hose of diameter2.70cm fills a20.0-L bucket in1.30min.
(a) What is the speed of the water leaving the end of the hose?
m/s
(b) A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the diameter of the hose, what is the speed of the water leaving the nozzle?
A plumb bob is suspended from a point in the Northern hemisphere at a latitude of 45o. Find the angle this plumb bob makes
(a) Find the components of the net electric field at the origin. Ex = , Ey = (b) Find the magnitude and direction of the net electric field at the origin. |E| = at direction (from +x axis).
If a violin string vibrates at 460Hz as its fundamental frequency, what are the frequencies of the first four harmonics
Three objects with masses, m1 = 6.0 kg, m2 = 10.0 kg, and m3 = 15.0 kg, are attached by strings over frictionless pulleys as indicated. The horizontal surface is frictionless and the system is released from rest. Using energy concepts, find out th..
What is constant acceleration
Imagine a "free" electron and a "free" proton held midway between the plates of a charged equivalent plate capacitor. When released, how do their accelerations and directions travel compare.
A bat flies toward a wall at a speed of 5.5 m/s. As it flies, the bat emits an ultrasonic sound wave with frequency 29.0 kHz. What frequency does the bat hear in the reflected wave
Coil 1 has L1 = 47 mH and N1 = 104 turns. Coil 2 has L2 = 68 mH and N2 = 215 turns. what mutually induced emf appears in that coil
A bag of cement weighing 275 N hangs in equilibrium from three wires as suggested in the figure below. Two of the wires make angles θ1 = 56.0° and θ2 = 42.0° with the horizontal. Assuming the system is in equilibrium, find the tensions T1, T2,..
A refracting telescope is used to view the Moon (diameter 3480 km, distance from Earth 385,000 km). What is the diameter of the image produced by the objective
Two rectangular pieces of plane glass are laid one upon the other on a table. A thin strip of paper is placed between them at one edge, Find the angle of the wedge
The record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in 1981. Determine the total time the projectile was in fligh
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