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Question: The angular position of a point on a rotating wheel is given by ? = 1.96 + 6.20t2 + 4.15t3, where ? is in radians and t is in seconds. At t = 0, what are
(a) the point's angular position and
(b) its angular velocity?
(c) What is its angular velocity at t = 7.97 s?
(d) Calculate its angular acceleration at t = 2.88 s.
A 11.7 cm radius thin ring carries a uniformly distributed 15.4μc charge. A small 8.6g sphere with a charge of 1.5μc isplaced exactly at the center of the ring and given a very smallpush so it moves along the ring axis (+x axis)
A particle of mass m is confined to a circle of radius a, but is otherwise free. A perturbing potential H=Asinφcosφ is applied, where φ is the angular position on the circle. Find the correct unperturbed wave functions for the two lowest states of ..
Two waves A and B, both of wavelength λ = 51.7-cm, are initially out of phase by π. I want to bring them back in phase by placing some mirrors along the path of wave B as shown in the figure. What is the minimum spacing L required to achieve this?
An organic liquid flows from a reactor through a pipe to a storage tank in an oil refinery at a rate of 3 m3/min. The pipe is a commercial steel pipe.
A frog in a hemispherical bowl finds that he just floats without sinking in a fluid whose density is 1.35 g/cm^3. If the bowl has a radius of 6cm and negligible mass, what is the mass of frog.
An electron is accelerated by a constant electric field of magnitude 275 N/C. Discover the acceleration of the electron. Use the equations of motion with constant acceleration to discover the electron's speed after 9.50*10-9 s, assuming it starts fro..
Compute the critical edge load NxCR for a plate simply supported around the boundary, with length a = 2 m (along x), width b = 1 m, t = 1 cm.
A 40 kg crate is being lowered by means of rope. Its downward acceleration is 2.00 m/s^2. What is the magnitude of the force exerted by the rope on the crate
A rock is dropped straight down from the top of a 49.2 meter building. How long does it take for the rock to hit the ground? How fast is the rock moving on impact
The masses and coordinates of four particles are as follows: 45 g, x = 1.0 cm, y = 1.0 cm; 20 g, x = 0.0 cm, y = 4.0cm; 45 g, x = -3.0 cm, y = -3.0 cm, 30 g, x = -1.0 cm, y = 2.0 cm. What is the rotational inertia of this collection with aspect to..
A real battery is not just an emf. We can model a real 1.5v battery as a 1.5v emf in series with a resistor known as the "internal resistance", What is the potential difference between the terminals of the battery
ray of light comes to the interface that is part of a sphere of radius r=15.0 cm. Where does the refracted ray cross the principal axis if the incident ray is 5.0 cm away from the principal axis
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