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A 0.150-kg block of ice is placed against a horizontal, compressed spring mounted on a horizontal tabletop that is 1.20 m above the floor. The spring has force constant 1900 N/m and is initially compressed 0.045 m. The mass of the spring is negligible. The spring is released, and the block slides along the table, goes off the edge, and travels to the floor. If there is negligible friction among the block of ice and the tabletop, what is the speed of the block of ice when it reaches the floor?
A constant volume gas thermometer is used to measure the melting point of lead. The ratio of the measured pressure at this temperature to that at the triple point of water is 2.1982. What is the melting temperature of lead in Kelvin.
A 0.954 kg toy car is powered by four AA batteries (6.00 V total) connected directly to a small DC motor. What is the average current supplied to the car's motor
When the temperature of a thin silver [? = 19 × 10-6 (C°)-1] rod is increased, the length of the rod increases by 3.7 × 10-3 cm. By how much does the length of the gold rod increase
In a tug of war on a slippery floor, Jose of mass M pulls on the rope and imparts an acceleration a to Juanita, of mass m. Calculate the tension if Jose's mass is 80kg and Juanita's mass is 60kg, and she accelerates toward Jose at .1m/s2
the position of a particle moving along an x axis is given by x 13.0t2 - 2.00t3 where x is in meters and t is in
A 5kg block is accelerated at 3 m/s^2 while fighting a frictional force of 25 N. What force needs to be applied to the block
Calculate the net torque about the asle of the wheel assuming that a friction torque of .40m*N opposes the motion. determine its angular acceleration and angular speed
A point source of light is 200 cm below the surface of a body of water. Find out the diameter of the circle at the surface through which light emerges from the water.
Use Coulombs' law and integration to find the electric field inside a hollow cylindrical shell with surface charge density ps and surface radius a
lenzs law is said to be a consequence of the principle of conservation of energy. explain this statement by describing
An oil layer floats on 85 cm of water in a tank. The absolute pressure at the bottom of the tank is 112.0 kPa. How thick is the oil
Between 1911 and 1990, the top of the leaning bell tower at Pisa, Italy, moved toward the south at an average rate of 1.2 mm/y. The tower is 55 m tall. In radians per second, what is the average angular speed of the tower's top about its base?
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