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(a) A water hose 4.00 cm in diameter is used to fill a 25.0 L bucket. If it takes 3.00 min to fill the bucket, what is the speed v at which water moves through the hose? (Note: 1 L = 1000 cm3.)
(b) If the hose has a nozzle 2.00 cm in diameter, find the speed of the water at the nozzle.
An air-filled parallel-plate capacitor has plates of area 2.60 cm2 separated by 2.50 mm. The capacitor is connected to a 6.0 V battery. What is the charge on the capacitor
A spring with a constant of 32N/m is placed on a horizontal smooth surface and a mass of 2.3 kg is pushed against it. What is the velocity of the mass as it leaves contact witht he spring
A spring is hung from the ceiling. A 0.463 -kg block is then attached to the free end of the spring.Find the angular frequency of the block's vibrations
A machine part rotates at an angular speed of 0.56 rad/s; its speed is then increased to 3.46 rad/s using an angular acceleration of 0.44 rad/s2, Find the angle through which the part rotates
question1a man of mass 700kg stands in a lift on a set of weighing scales. the scale is calibrated in newtons. assume a
You are driving down a straight road at speed of 90 km/h and see another car approaching you at speed of 110 km/h along the road, how fast is the other car approaching you
A 50 kg person climbing a rope slides down after reaching the top. find The frictional force acting upward on the person
Two resistors of 7.0kohms and 10.0kohms are connected in series. A 4.0kohm resistor and a 9.0kohm resistor are connected in series to each other, What is the equivalent resistance of the resistors
Determine the ionization energy of hydrogen if the shortest wavelength in the Balmer series is found to be 3650 AO
An ac voltmeter, which displays the rms voltage between the two points touched by its leads, is used to measure voltages in the circuit shown in the figure . In this circuit, the ac generator has an rms voltage of 7.10V and a frequency of 30.0kHz ..
Suppose the flux through a loop changes uniformly from 12 Wb to 18 Wb in 6.50 s. What is the magnitude of the emf induced in the loop
Find the expression for the electric field, E? , of the ring as the point P becomes very far from the ring (x >> R) in terms of the radius R
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