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An 85-kg jogger is heading due east at a speed of 2.5 m/s. A 55-kg jogger is heading 24° north of east at a speed of 3.7 m/s. Find the magnitude and direction of the sum of momenta of the two joggers.
We all sound like great singers in the shower, due to standing waves. Assume that your shower is 2.65 (about 8.72 ) tall and can be modeled as an organ pipe. What are the wavelengths of the first two overtones for this shower
A golf ball strikes a hard, smooth floor at an angle of 37.5 ° and, as the drawing shows, rebounds at the same angle. What is the magnitude of the impulse applied to the golf ball by the floor
a long thin sierra pacific power line kilometers long carries a uniformly distributed charge of 8.2 microcoulombs per
a 1.70 kg block and a spring with a force constant of 955 nm are oriented vertically as shown below. initially the
A typical lightning flash delivers about 30C of negative charge from cloud to ground. How many electrons are involved
Which of the following actions is expected to increase the elastic modulus of a semicrystalline polymer? Select as many as appropriate. increasing the volume fraction of crystalline phase (vs amorphous phase) deformation by drawing (consider the el..
The model rocket is fired vertically from rest. It has a net acceleration of 17.5m/s2. After 1.5s, its fuel is exhausted and its only acceleration is that due to gravity. how high does the rocket travel
Two 10-cm-diameter charged rings face each other, 24.0 cm apart. Both rings are charged to + 20.0 nC. What is the electric field strength at the midpoint between the two rings and at the center of the left ring?
A car has aconstant speed of 17.0 m/s on a road. The car goes through a dip inthe road whose radius of curvature is 65.0 m. determine The centripetal force acting on the car
An automatic drier spins wet clothes at an angular speed of 5.2rad/s. How long does it take the drier to come up too speed
q1. an automobile with a mass of 1340 kg has 3.00 m between the front and rear axles. its center of gravity is located
A simple harmonic oscillator consists of a block of mass 1.70 kg attached to a spring of spring constant 144 N/m. What is the amplitude of the oscillations
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