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Two coherent sources of radio waves, A and B, are 5.00 meters apart. All sources emits waves with wavelength 6.00 meters. Consider points along the line connecting the two sources. At what distances from source A is there destructive interference among points A and B?
After being kidnapped and placed in the trunk of a car, you discover you are able to pry open the trunk. What was your average acceleration during this trip
Describe the energy transformations that take place when askier starts skiing down a hill, but after a time is brought torest by striking a tree. Why is it easier to climb a steep mountain via a zigzagtrail (switchbacks) than to climb straight up?
A regional airline flight consists of two legs with an intermediate stop. The airplane flies 410 due north from airport A to airport B. What is the direction of the average velocity for the trip
A wave crest passes an observation point followed by a second crest. The time between crest is a period of 168.818 seconds. If the wave is traveling at a speed of 154.167 m/s, how long are the wavelengths?
How much current would flow if you directly connected a 20Ω resistor to a 0.01 Volt battery? What would this 500 μA meter read if it was inserted into this circuit ( in series)? Would the internal resistance of the 500 μA meter significantly alter..
At a playground, a 22 {\rm kg} child plays on a slide that drops through a heightof 2.5 {\rm m}. What is the child's speed at the bottem of the slide
A small, spherical bead of mass 3.05 g is released from rest at t = 0 in a bottle of liquid shampoo. The terminal speed is observed to be vT = 1.80 cm/s. Find the value of the resistive force when the bead reaches terminal speed
Calculate the rotational inertia of a meter stick, with mass 0.64 kg, about an axis perpendicular to the stick and located at the 18 cm mark
A Cessna aircraft has a lift-off speed of 120 km/h. How long does it take the aircraft to become airborne
When responding to sound, the human eardrum vibrates about its equilibrium position. Suppose an eardrum is vibrating with an amplitude of 7.8x10-7 m and a maximum speed of 2.7x10-3 m/s. What is the maximum acceleration of the eardrum
A student sits on a rotating stool holding two 2.9-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s, Find the new angular speed of the student
An athlete training for an event does 6.53 104 J of work during a workout and gives off 6.17 105 J of heat, Determine the magnitude of the change in internal energy of the athlete
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