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12.0g of aluminum at 200C and 20.0g of copper are dropped into 51.0cm^3 of ethyl alcohol at 15C. The temperature quickly comes to 28.0C.
What is the initial Temp of Copper?
Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. compute the distance in which the snowmobile coasts to a halt
He slides so that his speed is zero just as he reaches the base. Explain how much mechanical energy is lost due to friction acting on the runner? How far does he slide?
A mass sitting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. 3.6 J of work is required to compress the spring by 0.1 m. Find the value of the mass
A 1.20 kg mass on a horizontal spring oscillates on a frictionless surface with a displacement as a function of time given by x(t) = 0.075cos(4.16t â€" 2.45). Find the total energy of the oscillating spring
A block of mass=0.750kg is fastened to an unstrained horizontal spring whose spring constant is k=65.0N/m. The block is given a displacment of 0.220m and then released from the rest.
A coin is located 27.9 cm to the left of a converging lens (f = 20.0 cm). A second, identical lens is placed to the right of the first lens, Find the separation between the lenses
A 6.00 kg ball is dropped from a height of 11.0m above one end of a uniform bar that pivots at its center. The bar has mass 7.50kg, How high will the other ball go after the collision
Four gram-moles of an ideal monatomic gas initially at temperature 300 K is compressed adiabatically from a volume of 1200 cm3 to a volume of 350 cm3. How much heat was transferred to the gas
A candle is placed 13.38 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, Find the focal length of the convex mirror
An ?-particle has a charge of +2e and a mass of 6.64 × 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.75 × 106 V, what are the radius of its circular path
An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. calculate the moon\'s radial acceleration
A 0.57-kg air cart is attached to a spring and allowed to oscillate. Find the maximum force exerted on it by the spring
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