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One of the fastest recorded pitches in major-league baseball, thrown by Tim Lincecum in 2009, was clocked at 101.0 mi/h. If a pitch were thrown horizontally with this velocity, how far would the ball fall vertically by the time it reached home plate, 60.5 ft away?
A "door closer" is attached to the door and the top of the door frame.When the door is open and at rest, the door closer exerts a torque of 4.8 {rm N} cdot {rm m}. What is the least force that you need to apply to the door to hold it open.
a box that weighs 10lbs is pushed along a surface by a variable force f0.1t0.5 lbs. what is the velocity in fts of the
what phase difference between two otherwise identical traveling waves moving in the same direction along a stretched
A steel pellet (density = 7.8 g/cc) of volume 5.0cc heated to100°C is dropped into a foam cup containing 20cc of water at 15°C. The final temperature of the mix is 30°C. Assuming no heat loss to the environment, decide the specific heat capacity of s..
A 5.66 microcoloumb and a -2.88microcoloumb charge are placed 16.9cm apart. Where can a third charge be placed
Amateur radio operators often refer to their radio waves by wavelength. What are the estimated frequencies of the 160-m, 15-m, and 2-m wavelength amateur radio bands?
You work for Wham-O! Computer Inc. in its product testing department. Find the laptop velocity right before it hits the floor
1) What is the initial angular acceleration of the object? 2) What is the initial acceleration of the center of mass of the object?
Weightless bar is 18 meters. Upward forces of 165N at 3 meters from left and one of 310N at 14 meters from left. Downward force of 475N is applied. What should be Point of Application
Two carts A and B are moving towards each other. Find The final velocity of the two carts and The kinetic energy lost during the collision.
Three point charges form an equilateral triangle near the origin. Q1 = +5.00 uC at x = 2.5m, Q2 = -5.00 uC at x = -2.5m, both on the x-axis, What is the potential energy of these three charges
A large wheel is coupled to a wheel with half the diameter, as shown in the sketch. How does the rotational speed of the smaller wheel compare with that of the larger wheel? Discuss the comparisons of the tangential speeds at the rims (assuming ..
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