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Water and rocks are commonly used to store energy in solar heated buildings. What advantage does water have over rocks?
A 1.5 kg copper block is given an initial speed of3.00m/s on a rough horizantal surface. Because of friction, theblock finally comes to rest. what happens on the remaining energy
A 8.0 kg object undergoes an acceleration of 2.5 m/s2. What is the magnitude of the resultant force acting on it? If this same force is applied to a 16.0 kg object, what acceleration is produced?
The first-order line of 589 nanometer light falling on a diffraction grating is observed at a 15 degree angle. Find at what angle will the third order be observed
A 350g object on a frictionless, horizontal lab table is pushed against a spring of force constant 40.0N/cm, How fast is the object moving when it has gained half of the spring's original stored energy
Calculate an approximate ratio of the electronic specific heat to the lattice specific heat of lithium at room temperature. (Hint: Use the results of Example 13-2, and justify this use.)
What is the maximum mass that the painter can have before the ladder begins to slip? (HINT: use the conditions for equilibrium.
Calculate the charge on each plate and the number of electrons on the negative plate if the charge on an electron is 1.6 x 10-19 C.Calculate the charge on each
a small wooden block with mass 0.900 is suspended from the lower end of a light cord that is 1.76 long. the block is
The left face of a biconvex lens has a radius of curvature of 14.0 cm, and the right face has a radius of curvature of 25.0cm. The index of refraction of glass is 1.44. Compute the focal length of the lens.
a block is pushed across a rough horizontal surface by a horizontal force of magnitude P= 25 . The coefficient of kinetic friction between the block and the ground is 0.3 if the blck started from rest
Two objects of equal mass are on a turning wheel. Mass 1 is located at the rim of the wheel while mass 2 is located halfway between the rim and the axis of rotation. The wheel is rotating with a non-zero angular acceleration. For each of the follo..
you are designing a process to store pressurized argon gas a monatomic gas. you start with 3 moles of argon at a
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