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A barbell with two equal masses 1.0 kg on either end rotates about an axis perpendicular to the bar with an angular velocity of 1.13 rad/s. If one of the masses is 0.43 m away from the axis of rotation and the entire system has a rotational kinetic energy of 25.1 J, how far away is the other mass from that axis (in meters)?
Note: Treat the weights on the barbell as point masses, so that you can use I = mr2
Superman leaps in front of Lois Lane to save her from a volley of bullets. Obtain the average force exerted on Superman chest if the bullets bounce back after an elastic, head-on collision
It takes a force of 80.0 N to compress the spring of a toy popgun 0.200 m to "load" a 0.180-kg ball. With what speed will the ball leave the gun
Because the neutron has no charge, its mass must be found in some way other than by using a mass spectrometer. Find the mass of the neutron from these data
The United States currently has approximately 287 Numbering Plan Areas (NPAs) in service, corresponding to geographic regions. Each NPA is identified by a three-digit code
An inductor has a 51.6-? reactance when connected to a 60.0-Hz source. What is the maximum current in the inductor
The top surface of a calm, smoothly flowing stream is always at atmospheric pressure. As water in this stream runs into a tree stump and slows almost to a stop, the water's top surface
Bats are capable of navigating using the earth's field-a plus for an animal that may fly great distances from its roost at night. If, as sleeping during the day, bats are exposed to a field of a equal magnitude but different direction than the earth..
On planet X, an object weighs 8.63 N. On planet B where the magnitude of the free-fall acceleration is 1.8 q (where g = 9.8 m/s2 is the gravitational acceleration on Earth), the object, weighs 23.03 N. What is the mass of the object on planet X? Answ..
Three Identical stars of mass M from an equilateral triangle thatrotates around the triangles center as the stars move in a common circle about thatcenter. What is the speed of the stars
My question is really three, Can you please show all the work. At what frequency, in kiloHertz, do a 2.5 micro Farad capacitor and a 1.8 micro Henry inductor has the same reactance?
You measure distances from the center of a diffraction pattern (y) to a series of dark fringes on a screen, What is the wavelength of the laser you used to collect the data
Starting from rest, a 5.7 kg block slides 2.4 m down a rough 30.0° incline. Thecoefficent of kinetic friction between the block and the incline isµk = 0.436. Determine the work done by the force of gravity
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