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A mountain climber, who has has physics in high school, figures out the gravity at his location in the mountains. He used a 4.0 m length of string and found that with a rock tied at its end , its period as a pendulum was 4.1 seconds. What was gravity at his location?
A drop of water on a countertop reflects light from a flower held3.10 cm directly above it. The flower's diameter is 2.20 cm, and the diameter of the flower's image is 0.093 cm. What is the focal length of the water drop, assuming that it might be tr..
A coin is located 22.0 cm to the left of a converging lens (f = 16.0 cm). A second, identical lens is placed to the right of the first lens, such that the image formed with the combination has the same size and orientation as the original coin. Disco..
Starting from rest, a 5.2-kg blockslides 2.40 m down a rough 30.0°incline. The coefficient of kinetic friction between the block and the incline is µk = 0.436. Determine the work done by the force of gravity.
When viewed by an observer on the Earth, light from a distant galaxy is Doppler shifted to the red such that the ratio of the unshifted frequency to the observed frequency is 1.8
The left ventricle of the heart accelerates blood from rest to a velocity to +25 cm/s. Find the displacement of the heart during the acceleration
You have a solid conducting sphere (radius A, net charge -2Q) surrounded by a conducting spherical shell (inner radius B, outer radius C, net charge +3Q). What is the electric field everywhere
A charged capacitor is connected to an inductor. At time t = 0 the charge on the capacitor is Q = 6 %u03BCC. find the amplitude of the current at that same instant
The wheel in the figure has eight equally spaced spokes and a radius of 34 cm. It is mounted on a fixed axle and is spinning at 2.1 rev/s. What minimum speed must the arrow have
a very thin circular disk of radius r 13.00 cm has charge q 20.00 mc uniformly distributed on its surface. the disk
A 190-?F capacitor and a 80m H inductor are in series with a 105 ? resistor. What is the impedance at the resonant frequency
A spring is resting vertically on a table. A small box is dropped onto the top of the spring and compresses it. What is the magnitude of the spring's displacement when the spring is fully compressed
A bowling ball of mass 7.10kg and radius 9.20cm rolls without slipping down a lane at 3.64m/s. Calculate its total kinetic energy
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