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A golfer swings his club down to the ball in 0.2 second. At ball contact, the initial ball velocity is 50 meter per second. Obtain the angular velocity of the club head at impact?
Three 100 ? resistors are connected as shown in the figure. The maximum power that can safely be delivered to any one resistor is 21.5 W. find the total power delivered to the combination of resistors
An electron moving parallel to the x axis has an initial speed of 3.70 x 106 m/s at the origin. Its speed is reduced to 1.40 x 105 m/s at the point x = 2.00 cm. Which point does the proton have a higher potential energy
If one shines a laser with wavelength = 650 nm through a single slit of width a = 0.04 mm, How far apart are the minima
Friction and air resistance are negligible. Illustrate what speed does the ball have when the cable makes an angle of 30 degrees with respect to the vertical?
A 7.1cm diameter horizontal pipe gradually narrows to 5.7cm . When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 33.0kPa and 24.0kPa, What is the volume rate of flow
A molecule of DNA (deoxyribonucleic acid) is 2.04 µm long. Determine the effective spring constant of the molecule
As a baseball is being thrown, it goes from 0.0 to 40.0 m/s in 0.17 s. What is the acceleration of the baseball
A 34.0-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 225 N. What is the final speed of the crate after being pulled these 21.0 m
a wrecking ball is dropped. its velocity at the bottom of its swing is vradic2gh where g is the acceleration due to
A certain LCD projector contains a single thin lens. An object 31.7 mm high is to be projected so that its upright image ?lls a screen 2.8 m high. The object-to-screen distance is 1.33 m. Find the focal length of the projection lens. Answer in units ..
A particle (mass = 0.40 kg) moves in one dimension (x) and the potential energy is V(x) = (?1/2) q x2 with q = 7.35 J/m2. The initial conditions at t = 0 are velocity = 0 and position x0 = 2.9 m.
You are at the controls of a particle accelerator, sending a beam of 3.00×107 protons (mass ) at a gas target of an unknown element. Find the mass of one nucleus of the unknown element
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