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A block of mass M=1.665kg is floating stationary in a beaker of water. A string connected to the bottom of the beaker holds the block in place. The tension in the string is 5.50 N. The bottom of the block is floating a distance h=2.30cm above the bottom of the beaker.
The magnitude and direction on the buoyant force acting on the block is 21.817 N upward.
What is the density of the block?
A firehose 17 m long is uncoiled bypulling the nozzle end horizontally along a frictionless surface atthe steady speed of 2.4 m/s. How much work has been done on the hose bythe applied force
A spectral line from the left side of Saturn's rings, as you see them, is at a wavelength slightly shorter than the same spectral line measured from the right side of Saturn's rings. Which way (direction) is Saturn rotating and why?
A suitcase is pulled by a tether that makes a 60 degree angle with the horizontal. what is the magnitude of the pull
The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W=47800 N. What is the magnitude of the lift force
A submarine is 302 m horizontally out from the shore and 132 m beneath the surface of the water. What is the height of the building
A particular guitar string is supposed to vibrate at 206 Hz, but itis measured to actually vibrate at 210 Hz. By what percent should the tension in the string be changed to get the frequency to the correct value?
a window washer is standing on a scaffold supported by a vertical rope at each end. the scaffold weighs 190 n and is
a monochromatic beam of light of wavelength 600nm is incident on a diffraction grating with a slit spacing of 1.7*10^-4cm
The ball loses contact with the spring and leaves the gun when the spring is still compressed by 12 cm. Elucidate what is the speed of the ball when it hits the ground, 1.4 m below the spring gun?
3.00×104 of 300 C steam at a pressure of 20.0 is cooled until it condenses. What is the volume of the liquid water
A rifle with a barrel length of 58 fires an 11 bullet with a horizontal speed of 370. The bullet strikes a block of wood and penetrates to a depth of 15.
A small immersion heater is rated at 352 W. Estimate how long it will take to heat a cup of soup (suppose this is 250 mL of water) from 20°C to 50°C.
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