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A pendulum hangs from an inclined wall. Suppose that this pendulum is released at an initial angle of 10 degrees and it bounces off the wall elastically when it reaches an angle of -5 degrees. What is the period of this pendulum?
While surveying a cave, a spelunker follows a passage 190{rm m} straight west, then 210{rm m} in a direction 45.0^circ east of south, and then 260{rm m} at 30.0^circ east of north. After a fourth unmeasured displacement, she finds herself back whe..
The model airplane in Figure 5.6 is flying at a speed of 14.5 m/s on a horizontal circle of radius 18.1 m. The mass of the plane is 0.801 kg, What is the net work done on the plane
A student decides to spend spring break by driving 50miles dues east, then 50miles 30degrees south of east, How far will he drive, and how many vectors must he sum to calculate his displacement
A certain freely falling object requires 1.56 s to travel the last 37.0 m before it hits the ground. From what height above the ground did it fall.
The average density of the planet Venus is 5219 kg/m3. The acceleration of gravity on its surface is 8.84 m/s2. Calculate the average radius of Venus
The turbines in a hydroelectric plant are fed by water falling from a 50-m height, what is the mass flowrate of water required to power a 200-watt light bulb
Electrons in a photoelectric experiment emerge from an aluminum surface with a maximum kinetic energy of 2.1eV
A Garden hose with a cross sectional area of 3.2x10^-4 m^2 is used to fill up a bucket with a volume of 6.5x10^-2 m^3 in 25 seconds
An initially stationary hovercraft sits on a large lake. At time t=0 it accelerates due north at a rate of 1.2 m/s2 for 10 s, what is the velocity of the hovercraft at time t=40 s
If the efficiency of a reversible engine is 28.%, what is its COP operated as a refrigerator
A 1-cm-thick layer of water stands on a horizontal slab of glass. After entering the glass, what is the ray's angle from the normal
1.50-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 5.60sin(2?t), FIND THE AMPLITUDE OF THE MOTION
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