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A light spring of constant k = 155 N/m rests vertically on the bottom of a large beaker of water (as seen in the picture below). An m = 5.37 kg block of wood (density = 641 kg/m3) is connected to the spring and the mass-spring system is allowed to come to static equilibrium
What is the elongation, DeltaL, of the spring?
A female orb spider has a mass of 0.50g . She is suspended from a tree branch by a 1.1m length of 0.0020mm--diameter silk. how long does it take to reach the spider
Coyote is on a rocket that has acceleration of 10m/s^2, initially at rest at the top of a flat, level cliff. A roadrunner traveling at a constant speed of 25mil/hr passes the coyote, How far ahead of the coyote is the roadrunner when the fuse ignit..
A bluetooth headset has an intensity of 0.08 W/m2 at 5 cm distance. what is the total intensity (headset plus phone) at the center of your brain
A string of length 10.0m has a linear mass density of 25g/m. What is the speed of the pulse as it approaches the top of the string
A negative charge of -2.0 multiplied by 10-4 C and a positive charge of 9.5 multiplied by 10-4 C are divided by 0.30 m. What is the force between the two charges.
A player bounces a 0.47 kg soccer ball off her head, changing the velocity of the ball from i = (9.2 m/s) + (-2.7 m/s) to f = (6.1 m/s) + (5.5 m/s). The ball is in contact with the player's head for 6.70ms.
A 2.00-kg package is released on a 53.1° incline, L = 3.93 m from a long spring with force constant 120 N/m, What is the maximum compression of the spring
Calculate the magnitude of the planes acceleration. On a level road with its brakes on, a car traveling at 93 km/hr stops within 87 m when the brakes lock and the car slides.
A 4.0 kg particle starts from rest at x = 0 and moves under the influence of a single force Fx = 6 + 4x - 3x2, where Fx is in newtons and x is in meters. Find the power delivered to the particle when it is at x = 2.0 m
A rubber ball is dropped from rest 3.3m onto level ground. Bouncing back the ball loses 25% of its mechanical energy. To what height does it rebound
A coffee filter of mass 1.4 grams dropped from a height of 3 m reaches ground with a speed of 0.7 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter.
A 50.0 kg child stands at the rim of a merry-go-round of radius 2.10 m, rotating with an angular speed of 2.90 rad/s. What is the child's centripetal acceleration
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