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Calculate the fluid force (in Newtons) on a square plate with aside of 6 m that is submerged at ahorizontal angle of 30°. Assume that the top edge of the platelies at a depth of 5 m in the water
One January morning, a warm chinook wind rapidly raised the temperature in Spearfish, South Dakota, from below freezing to +11.1° C. Find the average speed at which its height would decrease
A 0.80 kg ball and a 4.20 kg ball are connected by a 78.0 cm long massless, rigid rod. The structure rotates about its center of mass at 250 rpm. What is the rotational kinetic energy of the structure?
What is the probability density equation as a function of angle for a simple pendulum using the small angle approximation
A gymnast with mass m1 = 43 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 108 kg and length L = 5 m. Each support is 1/3 of the way from each end. at first the gymnast stands at the left end of..
A 2.10 mass is pushed against a horizontal spring of force constant 26.0 on a frictionless air table. What is the greatest acceleration of the mass
q1. a 20 kg block is at rest on a horizontal floor. if you push horizontally on the 20 kg block with a force of 50 n it
What must be the mass m2 of the hanging block if it is to descend 11.0m in the first 3.00s after the system is released from rest
A stamp collector is viewing a stamp with a magnifying glass held next to her eye. What is the refractive power of a magnifying glass that has an angular magnification of 5.8 when the image of the stamp is located at the near point
a gymnast with mass 47.0 kg stands on the end of a uniform balance beam as shown in the figure. the beam is 4.60 m long
Four point charges are located at the corners of a square measuring 50.0 cm on each side. Three of the charges are -2.00 uC each and the fourth is -5.00 uC, Find the potential energy of the system of four charges
a total of 3.26 x 106 electrons are placed on an initially uncharged wire of length 1.24 m.a what is the magnitude of
A child is twirling a 0.0215-kg ball on a string in a horizontal circle whose radius is 0.143 m. The ball travels once around the circle in 0.586 s. Determine the centripetal force acting on the ball
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