13. 0.73/1.46 points | Previous Answers SerPSE10 11.2 0P008.ctx My Notes Ask Your Teac You have...
A space station is constructed in the shape of a hollow ring of mass 4.85 x 104 kg. Members of the crew walk on a deck formed by the inner surface of the outer cylindrical wall of the ring, with radius 140 m. At rest when constructed, the ring is set rotating about its axis so that the people inside experience an effective free-fall acceleration equal to g. (See figure below.) The rotation is achieved by firing two small rockets...
10. + 0/3 points | Previous Answers SerPSET9 12.P.021. My Notes + Ask Your Teacher John is pushing his daughter Rachel in a wheelbarrow when it is stopped by a brick 8.00 cm high (see the figure below). The handles make an angle of a = 20.0° with the ground. Due to the weight of Rachel and the wheelbarrow, a downward force of 405 N is exerted at the center of the wheel, which has a radius of 15.0 cm....
19. [-13 Points] DETAILS SERPSE10 29.1.OP.003.CTX. MY NOTES ASK YOUR TEACHER You are performing studies of the possibility of migrating birds using the Earth's magnetic field for navigation. To modify the magnetic field in the brain of a bird, you fit the bird with coils as "caps" and "collars" as shown in the figure below. The data on the coils indicate that they each have 210 of resistance, a radius of 1.20 cm, and 50 turns of wire. The centers...
box in answer please 18. 0/10 points I Previous Answers SerPSET9 13.P065 My Notes Ask Your Teacl As an astronaut, you observe a small planet to be spherical. After landing on the planet, you set of, walking always straight ahead, and find yourself returning to your spacecraft from the opposite side after completing a lap of 24.2 km. You hold a hammer and a falcon feather at a height of 1.37 m, release them, and Determine the mass of the...
8. [-14 Points] DETAILS SERPSE10 30.1.OP.008.CTX. MY NOTES ASK YOUR TEACHER You are a technician at an MRI center. One day some medical students enter your lab for a training session. One of them asks about metal in the MRI room, and you clearly state that that is a dangerous situation. The questioner does not look convinced, so you provide the following example. Suppose a woman enters the MRI machine and has forgotten to remove a silver choker necklace. The...
2. A bar on a hinge starts from rest and rotates with an angular acceleration α (10 + 61), where α is in rad/s" and 1 is in seconds. Determine the angle in radians through which the bar turns in the first 4.00 s. 4. A dentist's drll starts from rest. After 3.20 s of constant an- gular acceleration, it turns at a rate of 2.51 × 104 rev/min. (a) Find the drill's angular acceleration. (b) Determine the angle (in...