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Two cubes having identical volumes are cemented together to form a composite material. Each cube is 2.60 cm on a side. If the total mass of the composite material is determined to be 152.6 grams and one of the cubes is made from a material whose density is 2.70 g/cm3, find the density of the other material. Neglect the mass of the cement.
Mercury has a mass of 3.30 1023 kg and a radius of 2.44 106 m. Assume it is a uniform solid sphere. What is the rotational kinetic energy of Mercury on its axis
Assuming that air resistance exerts a 95 N force on the person during the fall, identify the person's velocity just before hitting the net.
A rock is thrown from the edge of a cliff to theground 16.0 m below. The rock has an initial velocity of 18.5 m/s, directed 40.0° above the horizontal.
let L=1.20m and d=0.120mm and assume the slit system is illuminated with momochromatic 500-nm light. Calculate the phase difference between the two wave
Two closely spaced circular disks form a parallel-plate capacitor. What are the diameters of the disks
A 2.05 cm tall object is placed 30.0 cm to the left of aconverging lens with a focal length f1 =18.9 cm. A diverging lens, with afocal length f2 = -41.5 cm, How tall is the final image of the object
The centers of a 14kg lead ball and a 130g lead ball are separated by 7.0cm. What gravitational force does each exert on the other
Suppose the current in a conductor decreases exponentially with time according to the equation I(t) = I0e-t/?, where I0 is the initial current (at t = 0), and ? is a constant having dimensions of time. Consider a fixed observation point within the..
A person pushes a 17.2-kg shopping cart at a constant velocity for a distance of 24.2 m on a flat horizontal surface. Determine the work done by the pushing force
A concave mirror (R = 56.0 cm) is used to project atransparent slide onto a wall. The slide is located at a distanceof 40.0 cm from the mirror, and a smallflashlight shines light through the slide and onto the mirror. Thesetup is similar to that i..
A large tanker truck can carry 30 ton of liquid. (a) What volume of water can it carry? (b) What volume of gasoline can it carry.
A 4m length of light nylon cord is wound around a uniform cylindrical spool of radius 0.50 m and mass 1 kg. The spool is mounted on a frictionless axle and is initially at rest. The cord is pulled from spool with a constant acceleration of magnitu..
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