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A sphere of mass of m = 1.30 kg is first placed directly on the plate of an electronic scale. The scale shows 12.75 N as the weight of the object. A large beaker containing a liquid with a density of ?liquid = 853 kg/m3 is then placed on the scale and the scale is tared (i.e. zeroed to this weight as a reference point, it has a reading of zero with the beaker on the scale). The sphere, hung by a thin string, is lowered into the liquid and submerges below the surface. ( The scale reads 1.70 N with the sphere not touching the beaker. Calculate the density of the sphere.
A 4 kg ball is raised a vertical distance of 2 meters. Using the conservation of energy principle calculate the final speed of the ball right before it hits the ground
What percentage of the power of the battery is dissipated across the internal resistance and hence is not available to the bulb
The partnership earnings before partners' withdrawals for 2005 totaled $484000. Calculate José's gross income from the partnership from the above for 2005.
A 3.4 kg piece of aluminum at 28°C is placed in 1.0 kg of water in a Styrofoam container at room temperature (20°C)
An outboard motor for a boat is cooled by lake water at 14.7 degC and has a compression ratio of 14.1, Calculate efficiency of the engine's Otto Cycle
An arrow is shot at an angle such that it's horizontal velocity is 40 m/s, Find the horizontal distance the arrow will travel
You then kick the ball with the same initial velocity and at the same angle to the horizontal. This time, however, you kick it up a 15 degree slope. What is the horizontal range of the ball's travel
A circular saw blade completes 1200 revolutions in 40 rm s while coasting to a stop after being turned off. Assuming steady deceleration, what are (a) angular deceleration and (b) initial angular speed.
A 60.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.760 and 0.410, correspondingly. What horizontal pushing force is required to (i) just start the crate moving and (ii) slide the crate ..
The mass of Mercury is 0.0550 times that of earth, and its radius is 0.380 times that of earth, Calculate the average density of Mercury (in kg/m3) given the earth's density is 5.52×103 kg/m3
A kite is hovering over the ground at the end of a straight 44-m line. The tension in the line has a magnitude of 15 N. Find the height of the kite
A stone is thrown horizontally from the roof of a tall building with a speed of 23.3 m/s. how far from the building will the stone land
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