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A hawk flies in a horizontal arc of radius 14.4 m at a constant speed 3.55 m/s. (a) Find its centripetal acceleration. (b) It continues to fly along the same horizontal arc, but increases its speed at the rate of 1.35 m/s2. Find the acceleration in this situation at the moment the hawk's speed is 3.55 m/s. b1) magnitude of a b2) direction from the direction of velocity towards the center
A motorcycle daredevil plans to ride up a 2.50m high 25.0° ramp, sail across a 10-m-wide pool filled with hungry crocodiles, and land at ground level on the other side.
The water system in a town is designed by a careless engineer. He places the new water tower at the top of an extremely tall hill, Calculate the minimum height of the water level in the tower
In a historical movie, two knights on horseback start from rest 74 m apart and ride directly toward each other to do battle. How far from Sir George's starting point do the knights collide
q1. a steel wire with mass 20.8 g and length 1.09 m is strung on a bass so that the distance from the nut to the bridge
A constant horizontal force a pushes a 4.40kg FedEx package across a frictionless floor on which a xy coordinate system has been drawn. The package's x and y velocity components versus time t.
A point charge with q1 = +2.8 C is located at x = 3.0 m, y = 0, and a second point charge with q2 = +4.4 C is at x = +1.0 m, y = +3.0 m. What are the components of the electric field at x = +1.0 m, y = 0
How long after the first strike does Wilma hears the sound. What is the time interval between successive sound pulses she hears.
What is the magnetic field at the center of a circular loop of wire of radius 4.0cm when a current of 10a flows in the wire
To sell her plan to the city council, the architect wants to build a model to a scale, How fast should the water flow in the channel in the model
The second harmonic sinusoidal standing wave in a pipe with both ends open has a wavelength of 2m. The sound speed is 340 m/s. What is the frequency of the fundamental mode in this pipe
In each of the following cases, the mass is 32.0 kg and the radius is 7.50 cm. (a) What is the moment of inertia (kg m2) of a solid cylinder rotating about an axis parallel to the symmetry axis but passing through the edge of the cylinder? (b) What i..
An object is placed two focal lengths from a diverging lens. What is the magnification and location of the image.
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