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An object with a mass of 33.0 g displaces 870.0 ml of water when it is completely immersed. What is the buoyant force on the mass? (Use g=9.8 N/kg as necessary.)
q1. the output of a certain laser pointer consists of a beam with uniform irradiance across the beams cross section.
a horizontal water main with a cross-sectional area of 186 cm2 necks down to a pipe of area 57.8 cm2. meters mounted
When a resistor is connected across the terminals of an acgenerator (107 V) that has a fixedfrequency, there is a current of 0.495 Ain the resistor. When an inductor is connected across the terminals of this same generator, there is a current of 0..
A cart that has a mass of 100 kg goes around a vertical loop at a constant speed of 10 m/s. Determine the force that the seat pushes on you with v = 7r at the top of the loop
Calculate the derivative of the speed of sound in air by respect to the absolute temperature, and show that the differentials dv and dT obey dv/v = 1/2 dT/T. Use this result to estimate the percentage change in the speed of sound when the temperature..
At what height above the earth is the acceleration due to gravity 20.0% of its value at the surface
The Mars rover "Spirit" has a mass of (approximately) 500 kg. Let R be the ratio of its weight on Mars to that on Earth, R = (weight on Mars)/(weight on Earth). Find R.
two harmonic oscillators a and b of mass m and spring constants ka and kb respectively are coupled together by a spring
A person walks first at a constant speed of 4.80 m/s along a straight line from point a to point b, What is her average speed over the entire trip
Carbon dioxide gas (CO2) enters a pipe at a pressure of 3.5 MPa and a temperature of 450 K at a mass flow rate of 2 kg/sec. This gas flow is cooled at a constant pressure until its temperature drops to 400 K at the exit of the pipe.
The current in a solenoid is increasing at a rate of 6.37 A/s. The cross-sectional area of the solenoid is ? cm^2, and there are 333 turns on its 11.5 cm length. What is the induced emf opposing the increasing current
A 12 meter long uniform ladder is leaning against a frictionless wall at an angle of 50o above the horizontal. The ladder has 30 kilogram mass. obtain the magnitude of the force exerted by ladder on wall
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