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An oscillator moves according to x(t) = Acos(ωt+Φ). When t is 0.785s, x = 0.200m, vx = 0.600m/s, and ax = -3.20 m/s2.
Determine the values of: a) ω, b) A, c) Φ
A car is driven 225 km west and then 78 km southwest (45 degrees). What is the displacement of car from the point of origin (magnitude and direction).
A ball is at the top of a ramp that is 4.5 m above a table. If the ball rolls without friction, how fast is it going at the bottom of the ramp
A 1.1 kilograms object is released 500 kilometer above the earth. Find by what percentage is the flat-earth calculation in error
We've seen that fish can control their buoyancy through the use of a swim bladder, a gas-filled organ inside the body. What will the volume of the swim bladder be if the fish ascends to a 49 depth without changing the quantity of gas
The aurora is caused when electrons and protons, moving in earth's magnetic field of 5x10^-5 T, collide with molecules of the atmosphere and cause them to glow. What is the radius of the circular orbit for (a) an electron with speed 1.0×10^6 and (b) ..
A 75-kg trqampoline artist jumps vertically upward from the top of a platform with a speed of 5.00 m/s. (a) how fast is he going as he lands on the trampoline 3.0m below? (b) If the trampoline behaves like a spring of spring constant 5.2 x 10^4 N/..
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, person and rock is 95.0 kg. The mass of the rock is 0.300 kg. Originally the wagon is rolling forward ..
A hoop and a disk, both of 0.58- m radius and 3.0- kgmass, are released from the top of an inclined plane 2.5 m high and 8.8 m long. What is the speed of each when it reaches the bottom? Assume that they both roll without slipping. What is the spe..
a uniform steel bar with weight of 98 N and length of 3.0 m is suspended on each end by a rope. A 50.0 kg mass hangs 50.0 cm from the left end of the bar. How much weight does each rope support
A diffraction grating with 395 lines/mm is 1.00 m in front of a screen. What is the wavelength of light whose first-order maxima will be 16.9 cm from the central maximum on the screen.
A curling stone with a mass of 7.00 kg moves across the ice at a speed of 1.35 m/s in the positive x direction. What is the initial momentum
A positive point charge q is fixed in position at the center of a square. A second point charge is fixed to corner B, C, or D. At which corner is the second charge located
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