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Water (density= 1x10^3 kg/m^3) flows at 10 m/s through a pipe withradius 0.030 m. The pipe goes up to the second floor of thebuilding, 2.0 m higher, where the radius of the pipe has DOUBLED. What is the new flow rater (m/s) of the water in the pipe?
A 6.30 x 10 -5 H solenoid is constructed by wrapping 54 turns of wire around a cylinder with a cross-sectional area of 6.4 x 10-4 m2. find the change in the length of the solenoid
Two sinusoidal waves of the same frequency travel in the same direction along a string. what is the amplitude (in cm) of the resultant wave
A parallel beam of light with an energy flux S of 10 W/cm2 falls for 1 hour on a perfectly reflecting plane mirror of 1.0 cm2 area. what force acts on the mirror
A 2.00kg mass is pushed against a horizontal spring of force constant 28.0N/cm on a frictionless air table. find the greatest speed the mass reaches
Explain the forces an observer on the turntable would measure on the cannonballs after they leave the cannon. (Include a diagram showing clearly the direction of the forces) measure up to to the forces an observer who is not on the platform would ..
The position of a cart that is oscillating on a spring is given by the equation x= 12.3 cm cos [(1.26 s-1)t] . When t= .805s , what are the (a) velocity and (b) acceleration of the cart ?
An object is placed to the left of a convex lens and on the optical axis. find the magnification of the image formed by the lense
a simple heat engine might make use of the warm air around new york city. energy could be taken as heat from the
the cube is 20.0 cm on each edge. Four straight segments of wire-ab,bc,cd, andda-form a closed loop that carries a currentI=5.00A in the direction shown, Determine the magnetic force on each segment
A 3500 resistor and a 1.1 µF capacitor are connected in series across a generator (60.0 Hz, 120 V rms). Determine the average power dissipated in the circuit
A continuous line of charge lies along the x axis, extending from x = +x0 to positive infinity. What is the direction of the electric field at the origin
A diver springs upward from a board that is threemeters above water. At an instant he contacts the water his speedis 9.20 m/s and his body makes an angle of 78.0o with respect to the horizontal surface of the water.
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