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A shot putter launches a 7.41 kg shot by pushing it along a straight line of length 1.58 m and at an angle of 35.7° from the horizontal, accelerating the shot to the launch speed from its initial speed of 2.6 m/s (which is due to the athlete's preliminary motion). The shot leaves the hand at a height of 2.12 m and at an angle of 35.7°, and it lands at a horizontal distance of 16.3 m. What is the magnitude of the athlete's average force on the shot during the acceleration phase? (Hint: Treat the motion during the acceleration phase as though it were along a ramp at the given angle.)
musical styles other than rock and pop are becoming more popular. a survey of college students finds that 34 like
rita pita company bought a new dough machine at thebeginning of the yar at ta cost of 7600. the estimated useful
the distance that a certain particle moves may be calculated from the expression d atbt2 where a and b are constants
when an opinion poll calls residential telephone numbers at random only 20 of the calls reach a live person. you watch
consider two spheres sphere 1 having a charge of -q and sphere 2 having a charge of q which are both insulating and
a cola dispensing machine is set to dispense 9 oz. of cola per cup with a standard deviation of 1 oz. the manufacturer
a. warren company plans to depreciate a new buildingusing declinign balance depreciation with 200 percent
the demand for a product of carolina industries varies greatly from month to month.based on the past two years of data
a man stands on the roof of a building of height 15.9 and throws a rock with a velocity of magnitude 29.5 at an angle
a dog running in an open field has components of velocity 3.2 and -1.6 at time 10.4 . for the time interval from
The surfer in the photo is catching a wave. Suppose she starts at the top of the wave with a speed of 1.50 m/s, how much work is done by the (non-conservative) force of the wave
two forces f1 and f2 have magnitudes 335 and 478 pounds respectively and act on a body at an angle of 45 degrees 40
Two blocks are connected on a horizontal frictionless table and pulled to the right with a force F= 60 N. compute the tension in the string connecting the two blocks
Determine the vertical component. when would a microphone at the other end first detect a disturbance.
A large wooden turntable in the shape of a flat disk has a radius of 2.05m and a total mass of 130kg. Find the angular speed of the turntable after the parachutist lands
Two balls are released simultaneously from a certain heightone is allowed to fall freely and other thrown with some horizontalvelocity. Will they hit the ground together
this simple demonstration of einsteins explanation for brownian motion shows little particles batting about a more
A friend buys a used pickup truck that comes complete with a CB radio. How long should you make the rod
Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. If the laser light wavelength is 1062 nm, How many wavelengths are found within the laser pulse
A proton moves perpendicularly to a uniform magnetic field at 5.0 107 m/s and exhibits an acceleration of 1.0 1013 m/s2 in the +x-direction when its velocity is in the +z-direction. find the magnitude and direction of the field.
Squeaky the balloon has been living large (diameter = 25 m) high above Santa ana college, where T= -20 Degree C, What is the air pressure at this point
A laser pulse has an energy of 15 J and a beam radius of 2 mm. The pulse duration is 11 ns and the energy density is constant within the pulse. What is the spatial length of the pulse
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