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An experimental plane just after takeoff climbs with a speed of 500km\h at an angle of 37o with the horizontal. Find at what rate is the plane gaining altitude?
If the sun is directly above the plane, Find how fast does the shadow of the plane travel across the ground?
A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
During volcanic eruptions, chunks of solid rock can be blasted out of the volcano; these projectiles are called volcanic bombs. What would be the time of flight
An electric fan is running on HIGH. After the LOW button ispressed, the angular speed of the fan decreases to 83.8 rad/s in1.75 s. Determine the intial angular speed of the fan
The clarinet is well modeled as a cylindrical pipe that is open at one end and close at the other. Find the wavelength and frequency of the third normal mode of vibration of a clarinet's air column
If the wheel on a car has a diameter of 50 centimeter and the car has a mass of 8.5 kilogram and it rolls down a hill without slipping. evaluate what is the wheel moment of inertia
A certain EM wave has a wavelength of 4e-7 m and a speed of 2.5e8 m/s in a particular material (not a vacuum). What is the wavelength of this wave in a vacuum
Calculate the gravitational force on a spacecraft 8700km above the Earth's surface if its mass is 1200kg
You throw a 1 kg rock down a 5m-deep wishing well. It hits the water with a velocity of 7.5 m/s. How much work did air resistance do
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
a pottery wheel is rotating initially with an angular velocity of 4.0rad/s clockwise. find the direction of the angular acceleration of the wheel
Two small identical conducting spheres are placed with their centers 0.78 m a part, The spheres are connected by a conducting wire, What is the electrostatic force between the two after equilibrium is reached
A light spring-gun projectile launcher is mounted on an 0.493 kg air track glider. What is the speed of the air-track glider after the gun is fired
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