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A bowling ball weighing 71.2 is attached to the ceiling by a 3.80 rope. The ball is pulled to one side and released; it then swings back and forth like a pendulum. As the rope swings through its lowest point, the speed of the bowling ball is measured at 4.20
A 1500 {rm kg} wrecking ball hangs from a 20 {rm m} long cable. The ball is pulled back until the cable makes the angle of 17.0^circ with vertical.
A series circuit is connected to a 220-V, 60-Hzpower supply. The circuit has the following components: a 16? resistor, Compute the rms voltage across the resistor
A person walks first at a constant speed of 5.10 m/s along a straight line from point to point and then back along the line from to at a constant speed of 2.95 m/s. (a) What is her average speed over the entire trip? (b) What is her average veloci..
An engine has an efficiency of 63% and produces 6461 J of work. Determine the rejected heat
A helicopter is ascending vertically with a speed of 5.20m/s. at a high of 125m above the earth, a package i dropped from a window. How much time does it take for the package to reach the ground? (Hint: the package's initial speed equals helicopte..
The invaders’ thermometer shows the temperature on earth to be 58 °I. Using logic similar to that in Example 1 in the text, illustrate what would this temperature be on the Celsius scale?
Suppose you put five electrons into a 0.30nm -wide one-dimensional rigid box (i.e., an infinite potential well). What is the ground-state energy
The current in a 100 watt lightbulb is 0.720A. The filament inside the bulb is 0.240mm in diameter. What is the electron current in the filament
The partial pressures of gas A and gas B, respectively, are 0.238 atm and 0.779 atm. If 0.220 mol a third gas is added with no change in volume or temperature, what will the total pressure become?
An electron passes through a point 3.27 cm from a long straight wire as it moves at 37.3% of the speed of light, Find the magnitude of the electron\'s acceleration at that point
Magnitude your response differs from the accurate answer by more than 10%. Double check the calculations. N direction.what is the maximum speed car can have without losing contact with road as it passes this highest point.
A 3.00 x 102-kg piano is being lifted at a steady speed from ground level straight up to an apartment 10.00 m above the ground. The crane that is doing the lifting produces a steady power of 4.00 x 102 W. Explain by how much time does it take to li..
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