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Problem: You throw a ball at an angle of 40 degrees above the horizontal.
Part A: How fast must you throw the ball, such that at the top of its trajectory the vertical component of its velocity vector is zero?
Please give a full detailed explanation of solution.
A 362 g object is attached to a spring and executes simple harmonic motion with the period of 0.200 s. If the total energy of the system is 6.71 J.
A guitar string is 60 cmlong. The string has a mass of 1.8g and is under a tensionof 945N. Calculate the fundamental wavelength for this string
A cameraman on a pickup truck is traveling westward at 24 km/h while he videotapes a cheetah that is moving westward 25 km/h faster than the truck. Abruptly, the cheetah stops, turns, and then run at 42 km/h eastward, as gauged by a suddenly nervous ..
A 21 kg suitcase is being pulled with constant speed by a handle that is at an angle of 30 degrees above the horizontal. What was the mass of the dog food
A camera is equipped with a lens with a focal length of 23 cm. how far from the film should the lens be placed
a wave on a string is described bynbspdxt3.4cmtimesnbspsin2?x8.4mt0.20s1 where x is in m and t is in s.a in what
A dentist uses a small mirror of radius 45 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 14 mm from the tooth, what is the magnification of the resulting image.
it has been said that it is better to lift a weight with your legs instead of with your back. which method of lifting
A point mass on a Hooke's Law spring is pulled aside 10 cm from the center position and then released. Calculate the displacement of the point mass when t = 0.44s
A 1.00 m 3 container of air absorbs 5857 J of heat at a constant pressure of 1.00 atm. Air has a density of 1.20 kg/m 3, a constant-pressure specific heat of 10*10 J/(kg·°C), and a thermal coefficient of expansion of 3.67 X10-3 (°C)-1.
Two equal positive charges of magnitude q1 = q2 = 5.5 nC are on the y axis at y1 = +3 cm and y2 = -3 cm. What is the force exerted on a third charge q0 = 4 nC when it is placed on the x axis at x = 2 cm
The desired overall magnification of a compound microscope is 150X. The objective alone produces a lateral magnification of 10.0X. Decide the required focal length of the eyepiece.
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