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A spring-loaded cannon aimed at 41 o above the horizontal is on the last car of a long train of flat cars. The train has an initial velocity of 57 km/h. At the moment the train begins to accelerate forward at 0.345 m/s2 the cannon fires a projectile at 182 m/s. The cannon points in the direction that the train is moving. What is the horizontal range observed by a person standing on the ground?
The wingspan (tip-to-tip) of a Boeing 747 jetliner is 59 m. The plane is flying horizontally at a speed of 220 m/s. Find the emf induced between the wing tips
1. a capacitor in an rc circuit is charging. which one of the following statements is correct?a there is a magnetic
A large solar panel on a spacecraft in Earth orbit produces 2.2{\rm kW} of power when the panel is turned toward the sun. What power would the solar cell produce
A dog running in an open field has components of velocity v_x = 3.0 m/s and v_y = -1.2 m/s at time t_1 = 11.4 s. For the time interval from t_1 = 11.4 s to t_2 = 24.7 s, What is the magnitude of the dog's velocity
A simple camera telephoto lens consists of two lenses. The objective lens has a focal length f1 = +44.0 cm. How far behind the concave lens should the film be placed
The siren on an ambulance is emitting a sound whose frequency is 2050 Hz. The speed of sound is 343 m/s. find the wavelength and frequency of the sound you hear
A train pulls away from a station with a constant acceleration of 0.42 m/s2. What is the slowest constant speed at which she can run and catch the train
A 10720 kg sailboat is moving through the waters of the Atlantic. Initially, the boat is traveling at 35 mph, 33 degrees East of North. calculate the force of the wind on the boat
An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale
the drawing shows a golf ball passing through a windmill at a miniature golf course. the windmill has 10 blades and
A narrow tube open at one end has varibale length. When a vibrating tuning fork is held near one end, What is a possible frequency of the tuning fork
A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of - 1.2 m/s. Her hands are in contact with the wall for 0.8 s. Ignore friction and wind resistance.
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