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A drop of water on a countertop reflects light from a flower held2.80 cm directly above it. The flower'sdiameter is 1.90 cm, and the diameter ofthe flower's image is 0.102 cm. What is the focal length of the water drop, assuming that it may be treatedas a convex spherical mirror?
A certain centrifuge produces a centripetal acceleration of magnitude exactly 1220g at a point 11.7 cm from the axis of rotation. Find the number of revolutions per second
A 0.5 kg mass attached to a linear spring, with spring constant 5 N/m and damping constant 0.2 kg/s, What is the natural frequency of oscillation
a small sphere with a radius r 1.52cm and a mass m 13.8g rolls without slipping on the inside of a large fixed
An express subway train passes through an underground station. It enters at t = 0 with an initial velocity of 21.5 m/s, What is the velocity of the end of the train as it leaves
Makeshift child's swing: Child's weight, magnitude of force, maximum angle, A makeshift swing is constructed by making a loop in one end of a rope and tying the other end to a tree limb.
An electron with a speed of 7.98 × 108 cm/s in the positive direction of an x axis enters an electric field of magnitude 2.25 × 103 N/C, how much time will have elapsed
A blue car of length 4.41 m is moving north on a roadway that intersects another perpendicular roadway (see figure below). The width of the intersection from near edge to far edge is 30.0 m.
An outboard motor for a boat is cooled by lake water at 14.7°C and has a compression ratio of 14.9. Assume that the air is a diatomic gas. Calculate the efficiency of the engine's Otto cycle
Seismographs measure the arrival times of earthquakes with a precision of 0.100 s.7 To get the distance between to the epicenter of the quake, they compare the arrival times of S- and P-waves, which travel at different speeds.
An airplane is flying in a horizontal circle at a speed of 520 km/h. If the wings of the plane are tilted 34° to the horizontal, what is the radius of the circle (in m) in which the plane is flying? Assume that the required force is provided entir..
Use the worked example above to help you solve this problem. An ideal gas at 23.6°C and a pressure 1.80 105 Pa is in a container having a volume of 1.00 L. Determine the number of moles of gas in the container
The tension in the horizontal towrope pulling a water-skier is 240 N, How much work does the towrope do on the water-skier
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