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When a person inhales, air moves down the bronchus (windpipe) at 14 cm/s. The average flow speed of the air doubles through a constriction in the bronchus. Assuming incompressible flow, determine the pressure drop in the constriction.
Your friend, who is exactly the same age as you, travels at a speed of 0.9990c to a star 25 light-years away. How long does she measure for the time she is away
A convex mirror has a focal length of -39.0 cm. A 12.0 cm tall object is located 41.0 cm in front of this mirror. Using a ray diagram drawn to scale, determine the size of the image
A 3.50 x 10^2 N child is in a swing that is attached to ropes 1.75 m long. find the gravitational potential energy associated with the child relative to her lowest postion. What is the net charge inside the die.
A 70.0 cm thick layer of oil floats on a 120 cm thick layer of water. What is the pressure at the bottom of the water
The school bus picks up Brian in front of his house and takes him on a straight-line 3.4 km bus ride to school in the positive direction. what is the position of the school
You wish to create an image that is 15 meters from an object. This image is to be inverted and four times the height of the object. What type of image is created, real or virtual
A parallel plate capacitor of capacitance 4.1 uF has the space between the plates filled with a slab of glass with k = 2.9, Find the energy stored in the capacitor after the glass is removed
An object of mass 5kg is moving with an momentum of 50 kg m/s. What is the speed of the object? What is the magnitude of the momentum of the object
An empty storage tank has a volume of 135 ft3. What is the buoyant force exerted on it by the air
You have two identical containers, one containing gas A (mA = 6.64 ×10?27 kg) and one containing gas B (mA = 1.39 ×10?27 kg). At what temperature will you accomplish your goal
A car starts from rest and accelerates at a rate of 2m/s^2 until it reaches the speed fo 30m/s. find number of revolution each wheel completes up to this point
find the childs speed at the lowest point.An elevator has mass 610 kg, not including passengers. The elevator is designed to ascend, at constant speed, a vertical distance of 20.0 m (five floors) in 17.0 s and it is driven by a motor that can provi..
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