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Question 1- A 1.50-kg bucket of water is tied by a rope and whirled in a vertical circle with a radius of 1.20 m. The bucket swings at 38 rpm. Determine the tension in the rope when the bucket is upside-clown at the top of the circular loop.
Question 2- A toy is made using an upright stick with a spring attached to the top of the stick and a small ball attached to the other end of the spring. The toy is then spun so that the spring is horizontal and the ball is spun in a horizontal circle. The ball's mass is 180 g, the spring constant is 60 N/m, the radius of the ball's movement is 38 cm, and the ball's velocity is 2.6 m/s. How much has the spring extended past its equilibrium point?
Question 3- With what speed must in with a radius r rotate on a frictionless table so that M doesn't move? Assume m=1.4kg, M=10.0kg, and r=0.5m.
A screen is placed 1.40m behind a single slit. The central maximum in the resulting diffraction pattern on the screen is 1.60cm, What is the distance between the two second-order minima
A tug of war is held between two teams of five men each. The mass of each man is 80 kg and he can initially pull on therope with a force of 1000 newtons. find the position of the teams as function of time
A +6.00-µC charge is moving with a speed of 6.30 104 m/s parallel to a very long, straight wire. Find the magnitude and direction of the force on the charge
A disk of radius 0.30 meter and mass 7 kilogram is spinning clockwise at 22 rad/s about a fixed axis in the center. Find at what time does the disk momentarily come to rest
A 42 kg child is riding on a carousel (merry-go-round) at a constant speed of 6 m/s. What is the magnitude of the change in the child's momentum |Δp with arrow| in going all the way around (360°)?
A heat engine operating between energy reserviors of 119.94 oC and 462.75oC has 35.02% of the maximum possible efficiency. How much energy must this engine extract
A projectile is launched with an initial speed of 40.0 m/s at an angle of 30.0° above the horizontal. What is the straight-line distance from where the projectile was launched to where it hits its target
An uncharged solid metal sphere of radius R = 1.72 mm sits with its center at a distance of D = 63.1 cm from two point charges ± q = ± 4.9 × 10^–8 C which form a dipole. The two point charges are separated by a distance d = 8.04\mu m, as shown in the..
Two wires have the same length and the same resistance. One is made from aluminum and the other from copper. Obtain the ratio of the cross-sectional areas
a branch is wedged under a rock and rests on a small object. the small object is 1.5 m from the large rock and the branch is 11.0 m long. what force must be exerted on the smaller rock
the label on a soft drink states 15.fl oz (444g) provides 220 kcal. The drink is cooled to 15degree Celsius before it's consumed. Find net energy content of drink
question waves on a stick a flexible stick 2.0 m long is not fixed in any way and is free to vibrate. make clear
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