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A child ties a rock to a string and whirls it around in a horizontal circle.
Part A Assuming a 1.44m -long string making 25.0 degree angle below the horizontal, find the speed of the rock.
Part B Find the period of its uniform circular motion.
With what speed must a ball be thrown vertically from ground level to rise to a maximum height of 36 m
A soccer ball is kicked with an initial horizontal velocity of 18.0 m/s, find How far from where it was kicked will the ball land
In a certain region of space, a particle is described by the wave function ?(x) = Cxe^(-bx) where c and b are real constants. find the energy of the particle
A home-run baseball is hit with an initial speed vo=37.0 m/s at an initial angle qo=53.1o. Find the time when the ball reaches the highest point of its flight, and find its height at this point
two automobiles are equipped with the same single-frequency horn. when one is at rest, What is the frequency the horns emit
A length of wire has a total resistance of 120 ?. If cut up into N identical pieces, How many pieces did the original wire get cut up into
Assume that a cloudy parcel has T = 275 K, wl = 1.5 g/kg. The background atmosphere has T = 274 K, and a relative humidity of 0.6. Assume a total pressure p = 600 hPa. What is the buoyancy of the cloudy parcel
What is the moment of inertia of the disk for rotation about an axis through the edge of the disk
A cubical block of wood 10cm on a side, floats at the interface between oil and water with its lower surface 1.50 cm below the surface
A uniform electric field has magnitude E = 270 N/C and is directed to the right. A particle with charge +4.3 nC moves along the straight line from a to b that is 0.25m in length, What is the work done on the particle by the electric field
The local acceleration of gravity is 9.813 m/s 2 , and the atmospheric pressure is 101.57 kPa. a) What is the force (in Nt) exerted on the gas by the piston, the weight and the atmosphere combined
a physical pendulum consists of a uniform solid disk (of radius R = 54.9 cm) supported in a vertical plane by a pivot located a distance d = 21.1 cm from the center of the disk. What is the period of the resulting simple harmonic motion
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